Fitness App never stops counting exercise minutes.

The past couple of days the fitness app is counting almost every minute as exercise so it looks like I’m always working out (which is not true).

It happens when I look at the app on my phone, as long as I don’t, the information on the watch is normal.

I tried una installing the app and unsych the watch and the phone and it didn’t work.

It’s not a big deal i guess, but it bothers me that it doesn't work right. What to do?