When choosing a spot to insert sensor… make sure that you DON’T use a muscle area (I used my butt for the first time a week ago and got tons of ??? and readings that were no where near my glucometer and called Dexcom to find out that I should avoid muscle areas). Dexcom will replace sensors if they are inserted in their FDA approved areas such as the abdomen.
It is hard to not overcalibrate (I got test happy the first day of having Dexcom) so I understand if you do overcalibrate and overtest on your fingers. I think it takes time to look more at your Dex for up and down trends going on with your blood sugar levels.
Good luck getting sleep the first week of being on Dex! My first week, it woke me up 3 times a night as I didn’t know I was having that many low’s! Dex has been a lifesaver for me. I would start by setting your low alarm at 80 or 70 until you get the feel of how close Dex is to your glucometer.
Another thing about Dex… He doesn’t like to beep while vibrating at the first site of an alarm going off for a low or high, it’s not until you let Dex “snooze” (not touching his buttons) that he’ll beep/vibrate… His first warning of a low or high is a vibrate (a pulse felt three times I believe?).
Also forgot… make sure you set the alarm if you are not in range of Dex as the carrying case Dexcom gives is HORRIBLE and falls off. The first week of having Dex, I lost him 2 times. The worst part is that I forgot that everytime I went in vicinity of Dex, his alarm wouldn’t go off… so finally I took the transmitter out of sensor to hunt for him in my SUV. Hubby would hear Dex yodel but couldn’t find him and then when I’d go to SUV, he wouldn’t alert… after taking transmitter out, we found him on the seatbelt mountain climbing. A lot of us Dexcom users have gotten different carrying cases for Dex. Just something to keep in mind.
Good luck with insertion of sensor and enjoy Dex!