Thoughts on the Dexcom Share Outage

Some background for those wondering “what’s a Dexcom?” and “why should I care about a ‘Share’ outage?”: Dexcom manufactures a popular continuous glucose monitor, or CGM, that allows people with diabetes who wear it to monitor their blood glucose levels in almost real time. It reduces the need for manual BG checks using a glucometer, provides advance warnings of low and high blood glucose events, and can interface with a popular insulin pump model to partially manage delivery of insulin. Dexcom’s Share server allows their CGM users to share blood glucose data with friends and family, so that others can remotely monitor them using a smart device. Share has been down for much of the Thanksgiving weekend, and to put it mildly, a lot of people are not happy. 

Online service outages happen, and the more essential they are to our daily lives, the more angry we are when they happen. We’ve come a long way from the days when the worst that could happen was a website going offline. Online services are more deeply embedded in our lives, and the consequences of outages are – or in some cases feel – more serious.

A couple of suggestions for Dexcom

Companies that deliver essential online services, and I’m looking at you Dexcom, would do well to remember two cardinal rules:

  • First, be clear with users about whether you are delivering a core product or a secondary service. As the anger over the outage spread, I began to think about the nature of Dexcom Share and whether it can be classified as one of Dexcom’s core offerings, or an add-on service that supports the primary product (their G6 CGM). The messages are mixed. It’s part of a very expensive product set (and I know – I just dropped a lot of money for G6 sensors and a transmitter), but it’s free to use. IMHO, anything that’s free – email, social sharing, etc. – is a crapshoot in terms of reliability. A paid service also comes with the right to complain when things go wrong. But here, we have a free-but-essential service. See the potential conflict?
  • Second, communicate in a clear and timely way. Look at the screenshot below. It says everything about the poor quality of Dexcom’s messaging, and the confusion it’s creating. The timeliness of updates on social media isn’t any better.

Rush to judgment

In the type one diabetes community, everyone’s journey is different. My experience as a person who has lived with diabetes for 43 years is radically different than that of the parent of a newly diagnosed child. I managed my diabetes for years without access to a glucometer, using pork insulin; new initiates to the diabetes community may have access to insulin pumps, CGMs, more sophisticated types of insulins, and other treatments, drugs and tools, including Dexcom Share. That’s their normal, and it informs how they deal with the disease. I may not necessarily understand the venom that’s directed at Dexcom, but I understand that it’s coming from a place of concern about loved ones and the feeling that something they depend on has failed them.

But here’s something that needs to the mentioned : Access isn’t the whole story. Tools to manage type one are expensive, and the majority of people with type one diabetes aren’t able to afford them. Relying on Dexcom Share implies that the user has a privilege that many can’t enjoy.

Many who enjoy that privilege took to social media to vent their frustration with Dexcom and assign blame for the outage. The frustration is understandable, but the conjecture wasn’t helpful or constructive. Suggesting that Dexcom doesn’t care about their users, isn’t properly staffed to deal with an emergency, hasn’t paid for reliable cloud infrastructure, and demanding a full accounting of what went wrong –while it’s being repaired – doesn’t solve the problem.

We all need to vent, but as a customer I’m more interested in knowing what went wrong and how the company plans to prevent it from happening in the future. If the answer isn’t satisfying, that’s the time to press the case with Dexcom and maybe consider moving to another solution. The latter step admittedly isn’t easy because of the few available CGM options, which is driving some of the online anger.

But if the tech is essential to keeping someone alive, venting is the least constructive thing to do in the moment. If there’s not a Plan B for a tech failure, health care providers can help. Facebook comments are a distraction.

This is going to happen again

There will be future outages. If not Share, with some piece of technology that lessens the burden of type one. I’m not going to offer advice about how to respond to those failures. My circumstances (pump/CGM user who doesn’t Share) are probably different than those of many reading this. But regardless of how you or I respond, everyone with type one needs to have constructive plan to manage the disease when technology fails. We can’t press pause while we wait for some piece of tech to start working again. We have lives to live.

Disclosure: I’m a longtime Dexcom user, but other than giving them a lot of cash over the years I have no relationship with the company. So I can say whatever I want, within limits.

Categories T1D

Unfinished business

More than 30 years ago I was a pilot. I held a private pilot license and flew gliders, with most of my 125+ flights in the Schweizer 2-33, Schleicher Ka-8, Blanik L-13, and Grob G103. Because of type one diabetes, I wasn’t able to get a medical certificate needed for power flight, so my seat time in planes with engines was limited to flying with friends in a variety of 1940s-era taildraggers.

The FAA will now grant exemptions for private pilots with T1D* and this sparked my interest in going back to flight school. After research into medical waivers and local flight schools I booked a discovery flight with Elon Aviation at Burlington-Alamance Regional Airport (KBUY). My goal for the flight was to get reacquainted with flying and see if it’s something I want to pursue.

First, props to Elon Aviation for a great experience. I booked my flight in a Cessna 172 that was well-equipped and maintained, and that had seen some serious cross country flights. My instructor, Nick, quizzed me about what I wanted out of the flight, walked me through the preflight checklist, and then laid out the plan: I’d taxi, he’d take off, and once we reached 500 feet I’d take the controls.

Cessna 172, 738 Bravo Golf

Taxiing to runway 6 reminded me of how much I don’t know. Coordinating throttle, rudder and brakes turned out to be the most challenging part of the flight, though it was easier on the return trip to the hanger.

Waiting to turn onto runway 6

Nick quickly had us airborne and after we passed 500 feet I took the controls. One memory from 30+ years ago came back: The workload involved with flying a plane. At first I focused on getting the feel of the controls as we climbed and making coordinated turns. After we gained altitude I turned toward Greensboro, dodged clouds, practiced climbing and descending, turning to headings, and managing the throttle. And I kept reminding myself to keep my eyes outside the cockpit and watch for traffic.

Then time was up and Nick said, “You fly the pattern.” A lot of credit goes to Nick for talking me through my approach, but the experience of juggling throttle, carb heat, flaps, yoke and rudder while maintaining our glide slope (not perfect, but close enough) and staying on the runway centerline was a confidence booster. Nope, I didn’t get to fly the landing; I passed controls back to Nick short of the runway.

So what’s next? I have some unfinished business with flying, and the next step is a medical waiver. It’s not a simple process, so it might be a while before I know whether I can get back into the cockpit and continue training.

*There’s an alternative to the private pilot license for people with T1D–the light sport certificate, which requires a drivers license but not a medical exam. I’m not enthusiastic about the light sport rule, because it includes a long list of limitations about what, where and when you can fly, as well as a prohibition on passengers.

Type One Diabetes and the Injured Athlete

I wrote this article for Heidi Armstrong’s Injured Athletes Toolbox. Heidi is a friend and tremendous resource for athletes who are struggling with the mental aspects of an injury.

This was my July: Recovering from a bicycle accident that left me with a broken clavicle and rib. Suddenly, I couldn’t ride my bike, and couldn’t run or engage in any of my other normal activities. A long, unhappy summer stretched out in front of me.

My recovery had one additional component: Type one diabetes, or T1D. I was diagnosed 42 years ago, and though I’m active, healthy and free of complications, T1D casts a shadow over the recovery process. Athletes with T1D can face distinct physical, emotional and spiritual challenges related to our disease. Understanding those challenges and learning how to adapt to them are essential to not only becoming whole, but maintaining health during the recovery process.

Those Pesky Numbers

Type one diabetes is a numbers game. Good health demands monitoring blood glucose (BG) numbers and the quarterly A1c, which provides insight into average BG numbers for the past three months. Regular exercise is a critical part of maintaining stable BG numbers within a target range. Athletes with T1D who are regularly active have a higher, more consistent sensitivity to insulin. This consistency removes some of the unpredictability about T1D from decisions about how to manage insulin, nutrition and activity.

Eliminating exercise triggers a series of cascading problems. Insulin sensitivity decreases; more insulin is needed to have the same affect. This can throw BG management off until the athlete recalibrates their bolus and basal doses to adapt to a lack of activity.

Athletes have to immediately adapt to this change in sensitivity following an injury. Whenever possible, they should look for opportunities to build mild activity into their recovery plans. Even a twenty minute walk following dinner can have a profound impact on increasing and stabilizing insulin sensitivity, and managing swings in BG. And, transitioning back to a normal training routine will be easier to manage if the athlete takes steps to stabilize insulin sensitivity.

Apart from keeping BG in range, athletes with T1D need to be conscious of other physical complications. In the case of my clavicle injury, keeping my arm in a sling placed me at risk for adhesive capsulitis, or frozen shoulder, a common complication from T1D. My recovery plan included progressive stretching as soon as I was able, to maintain my range of motion.

The Emotional Side of T1D

The emotional side of T1D is less understood than the physical side, but it’s coming into clearer view for those who study the disease. Athletes can see training and competition as essential to their health and well being. Take those things away, and depression and stress may take their place.

Both have a powerful impact on athletes as they navigate the recovery process. They also have a physiological effect on athletes with T1D. Stress triggers the release of counter regulatory hormones that increase blood glucose. These episodes can be intermittent or ongoing. Either way, they can lead to a roller coaster of high and low BG, complicating management.

How we manage the emotional side of T1D is as individual as the athlete. For me, focusing on interests that had been sacrificed to time on the bike and reconnecting with friends were two tactics that helped me manage stress while I recovered this past summer. More than distracting me, those activities felt productive and fulfilling.

Time in recovery gave me time to think creatively about new projects. Difficult as it was, when I realized that I would spend at least six weeks not cycling, I embraced the opportunity to do deep work that I had been putting off, and appreciated the value of having uninterrupted time to think and plan.

Like everyone who goes through recovery from an injury, I had my tough days. The best antidote for those was to rest on the couch with my dogs and read a good book. 

When an Injury Becomes an Existential Crisis

T1D is a chronic disease, and there can be a dark outlook associated with it. Those of us with the disease are aware of the possibility of possibly fatal complications, diabetic ketoacidosis , and life threatening hypoglycemia.4Injury can cause an athlete with T1D to suddenly confront, in a tangible way, evidence of their fragility and mortality. It becomes an existential crisis that threatens our identity as athletes and shakes faith in our ability to manage the disease.

That’s the spiritual side of recovery. Athletes with T1D can respond in several ways, including: Meditation or other contemplative practices, turning to faith, or despair. July and August were an opportunity for me to press pause on a busy life and use my time to be intentional and ask big questions about my goals as a cyclist and how the sport fit into my life. Even when a powerful sense of fragility was staring me in the face, I could look at the answers from those big questions and see a path back to wholeness.

Don’t Neglect Your Team

I’ve read here that recovery is a team effort. That’s particularly true for those with T1D. Injury brings the importance of having a team into sharp relief. I’m fortunate to have a network of athlete friends with T1D who I can call on for support, health care providers who understand and encourage my cycling, and family and friends who stand behind me. Having that team, before I ever needed them to help me though my injury, made all the difference.


  • Type one and type two diabetes are distinctly different diseases. For information about T1D read 
  • A BG of 90-120 is a typical target, though this can vary depending on the individual and their activity. 
  • Basal insulin is either fast acting insulin administered in tiny doses via an insulin pump, or slow acting insulin injected once or twice a day. Bolus insulin is a single dose of fast acting insulin given to counteract food that is consumed. 
  • Diabetic ketoacidosis, or DKA, is a result of extreme uncontrolled high blood glucose. Hypoglycemia is low blood glucose. 
Categories T1D


“Paris is a museum,” said the Paris-based filmmaker I’d been chatting with over beers.

Look beyond the monuments, museums, tourist traps, and other obvious must-sees and there’s vibrant everyday life. It may be a museum, but the people behind the scenes are fascinating to watch. It’s all about choosing your perspective.

Le Petit Parisien