Apple Watch constantly recording activity

Hello,

I've noticed over the last few days that my apple watch is recording activity as if I am standing/exercising for 24 continuous hours for 3 days straight. How do I reset this and is there a way to edit the activity that's already recorded as now it will alter my stats. This occurred both while I was wearing the watch, while it was charging, and while it was off but not charging.

Thanks,

Lindsey