I'm at the end of Day 7 of my trial of the Dexcom (mine is arriving today). I absolutely loved it. Until last night.
I started getting screwy readings about 10pm. Going up up up. Then up down up down. Hadn't eaten since 5:30. Weird. Tested on the meter. 138. Still screwiness. Tested again 10 minutes later. 129. CGM still rising.
Well, I decided to just accept it as I was very tired.
Fast forward. 11:30 - low. 1am - low. 2am-low. 4am-low (55).The glucose tabs didn't seem to work. Tried to test my blood in bed. Battery dies on that monitor (another story...). Got up, found another monitor. 141.
What could be causing this?? Was I wrong? Was this CGM crap just another "cross your fingers and sometimes maybe its better than nothing" diabetes "solution"? I mean, I didn't do anything different. Anything weird. I was even fasting, which seems like it should be easier for the CGM to work. I didn't take anything. All I did was take a Percogesic. And that doesn't....it doesn't....does it?
And sure enough. Acetominophen.
Lesson learned. I accept garbage in, garbage out. Looks like I fried the sensor though, as the thing just wants more and more blood. Oh well, its almost 7 days to the hour anyway.