Boat — Boat Storm

I boat storm watch last week. The first thing to complain about is the blood pressure level reading is completely misguiding I went for a check up to doctor it came 150/110 and In the watch it showed 119/74.
The next issue which i am facing is the steps count i started walking from 170 steps for 20mins it showed 1349 steps then i synced it in my progear app first it showed correctly then suddenly it again came down to 170 steps. Then again i started walking then stopped at 441 steps again after an hour it came down to 286 steps. Why is this happening please provide me with a solution.