??? During Heavy Exertion?
Anyone ever experience the ??? during very prolonged exercise? This weekend was my yearly climb up Mt. St. Helens. I take a Boy Scout troop up to the summit of the volcano every fall. This year I was looking forward to using my CGM to help me control on the way up. It’s about 4~5 hours of very heavy work. Soon after starting the climb, I got the ??? and they would not clear. I tried shutting off and restarting the receiver several times with no luck.
However, once I reached the summit and cooled off a bit, it started working again and continued to work for the climb down and the rest of the day. I am not sure if it’s a coincidence or if it has something to do with the high level of exercise?