I just got my first CGM yesterday (a Dexcom G5). However, my experience so far has been pretty poor.
Once I got booted up and running, around 4 pm, I had a small snack and bolus. Shortly after, it showed my BG jumping well over the 200 range. I waited it out for it to drop then had dinner a few hours later and it again shot above the 200 range, sitting there an hour or so and then dropping to sit around 130. This was pretty unusual as my last reading over 200 was almost 2 weeks ago and it was an anomaly.
Before I went to bed, I tested with my regular glucose monitor when my CGM was still sitting at 130 and found out that I was actually at 68.
So, I went to bed, interested to see my overnight pattern, but several hours of data were lost due to a signal loss, even though my phone was sitting on the night stand right next to me all night (I am using my phone to track, btw).
This morning I recalibrated again and while it wasn’t off by as large of a margin as last night, it was still reading about 20 below what I was really at. Less than an hour after I recalibrated and ate breakfast, it set off an alarm for low glucose, reading 68. I tested and found that I was really at 85.
Is this what it’s supposed to be like or is something going wrong here?