# The Dexcom enigma

**URL:** <https://forum.fudiabetes.org/t/the-dexcom-enigma/1318>\
**Category:** Fun\
**Created:** [June 23, 2017, 6:42pm UTC](https://forum.fudiabetes.org/t/the-dexcom-enigma/1318 "2017-06-23T18:42:56Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Eric](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/eric/32/9209_2.png) [@Eric](https://forum.fudiabetes.org/u/Eric)\
**Post date:** [June 23, 2017, 6:42pm UTC](https://forum.fudiabetes.org/t/the-dexcom-enigma/1318/1 "2017-06-23T18:42:56Z")

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I have finally figured out the mystery of Dexcom…

I see this occasionally. The “???” questions marks. And it sometimes appears for several hours, before eventually coming back with a BG value later.

![](https://canada1.discourse-cdn.com/flex030/uploads/fudiabetes/original/2X/e/e6281b05b94591345b5a9716d61059a03173d132.jpeg)

Why does it do that? I think the Riddler tells us the answer:

 ![](https://canada1.discourse-cdn.com/flex030/uploads/fudiabetes/original/2X/e/ecfa2f593089674840081201c6a7fc890dca933b.png)

And the “???” question mark symbol - is that a coincidence? I’m starting to think it is not. It’s the Riddler.🙂