First off I know way better than to trust the health alerts, but this just seems odd and I wondered if anyone else has noticed the same kind of thing since the most recent update. A little over year ago I went in for a cardiac ablation to correct AFib which it apparently did while trading it for PVC's that they say are harmless. This completely confuses the Apple Watch and makes ECG readings impossible, while heart rate reads pretty true. My walking has not been steady for quite a while but suddenly last Sunday I got this alert that I as in danger of falling 25 minutes ago. This was hysterical since I had been sleeping for probably the last hour or more after falling asleep in the recliner while watching TV. Then yesterday out of the blue it said I had closed the exercise ring for the first time. I looked at my heart rate history and saw nothing to suggest that I had been exercising, my heart had stayed within normal range all day. I'm not looking for any answers just wondering if anyone else has noticed the same things.