I’ve been using the Dexcom for almost two years, but not constantly. I use it when I feel like I’m losing control because it helps me get back on track and I use it to prepare for an endo visit so my doctor can see my nighttime bg levels or my CDE and I can discuss trouble spots, if any.
I agree with Marcus’ plus and minus list for the most part. It can be irritating to carry an additional device around. In addition, the alarms are VERY annoying.
I don’t agree that precision is a minus. All CGM makers are up front with the fact that the number you get from the CGM is imprecise and not good enough for making a treatment decision. (Maybe because the FDA makes them say it - I don’t know.) In any case, one of the hardest things to learn as a new CGM user is to quit obsessing over the fact that the CGM number doesn’t match the meter number. They will rarely match precisely, although it is a thrill when they do.
The point of the CGM is NOT to know what your BG is at the moment but to see how it’s trending. Is it staying level? Is it going up or down? How quickly? What affect did my last meal have on my BG? Did I bolus correctly for it? That kind of stuff.
If you keep trying to chase the meter number by constantly recalibrating your CGM to get it to match (as I did at first), you’ll just end up frustrated. A solid trending line is what I really like to see. If the points are jumping all over the place, it’s either a bad sensor or time to replace an old sensor.
If expense is an issue, you can re-use the sensors beyond the 7-day period. You don’t remove it and reinsert it, just re-start it AS IF it were a newly inserted sensor. Results will vary by sensor. Sometimes you’ll get two or more uses out of it, sometimes one and a half. If you are restarting it, one of the common causes of failure is that the adhesive comes loose and the sensor falls out. So be prepared to use some extra tape or Tegaderm.
Finally, be careful not to put your receiver in the washing machine.
I’m just saying.