I went out running the other day, and at the normal 3-6 minutes the watch provides the Performance Condition notification, +5 or whatever, I felt the buzz on my wrist and glanced down at the number. But the buzzing never stopped. It seemed to pulse continuously, and I wasn't getting any other phone notifications at the time. It continued until I reached my 1-mile point, when I got the lap notification, and then it stopped. The rest of the run was normal. Upon my return, after syncing my activity, I cycled power on the watch. I’ve got many running activities with the 970 and have never seen this before. I'm happy to provide Support the diagnostic log data from the watch if any exists.