Woke up last night with a racing heart. May have been too hot, because everything settled down after I peeled off layers. I have a new sensor, so not sure how well calibrated it is. The tracking overnight was off, so this morning’s data suggests my levels were high. Maybe the racing heart was the result of my having high BG? Because I didn’t wait 3 hours after dinner, I could have been digesting after the elliptical session, thereby flooding the system with glucose after completing my workout. Right now I’m at 133, but it looks like I’ve been higher most of the night.