I put on a Dexcom 7 CGM almost a week ago. It's the first time I've worn a CGM. I've toyed with the idea for a year. I don't wear an insulin pump - never have - but I thought a CGM could be a real help. I don't wear a pump because I'm very disciplined, and with frequent testing and injections my A1c stays in the high 5s. Of course that also means I have my fair share of lows: that's where the CGM comes in. All I want it to do (am still wearing it, till the sensor stops) was catch the lows before they happen, and the highs too, although I don't have many of those.
But my CGM is catching nothing. I've had 4 lows, none of which it caught. While I was in the 50s, it was 123, 94, 88 and something else I'm too disgusted to remember. And before you think I'm not doing something right, I'm calibrating it at least 3x/day and it never leaves my body or bed, including the times it tells me I'm out of range! Sometimes, admittedly, it's within 5 points of my meter, then I love it, and worse yet begin to trust it, because more often it's 20 points, 30 points, 40 points away. Then there's the lag time. Even if I'm going up or down quickly it's on 20 minute time delay.
So, after my 6 day experience I'm pretty sure this is not for me - not until they make the CGM parrot my meter in real time. That said, I'm dying to know whether you also hated your experience with the CGM, and why, or are one of its diehard fans, and why???