While I was on the phone with Dexcom today, I uploaded my data to Portrait and someone helping me said it only stores 30 days worth. I seem to remember that from when I first started using dex again, but it wasn't something I thought about much due to not ever uploading my data until recently and realizing that it will only ever have 30 days worth while my phone records in the ibg star app keep everything until I delete them off. Is all of this data automatically deleted off the dexcom each 30 days?
I had a strange experience at some point where the dexcom seemed to shut off or something like that and then gave me a message that it had reset itself and the graph of bg had all vanished or something. I can't remember exactly what happened now.