For the past month, we have been getting ??? at a much higher rate than in the previous 18 months of wearing Dex. Within the last 24 hours alone, we have had ??? for probably 12 of those hours at different times. ??? for an hour, data for an hour, ??? for an hour, etc... We called Dex and they really had nothing to offer other than to send another sensor. This sensor has been on for 3 days. Last sensor for 5. Eventually we get frustrated and just put a new one on. Anybody have any experience?