07-30-2016 08:49
07-30-2016 08:49
08-07-2016 04:37
08-07-2016 04:37
A warm welcome to the Community @Jack09. It's weird to hear that you lost that amount of steps in just a couple of hours. Did you log the activities "walk" or "run"? If you do, I recommend to delete that activity since it can cause some discrepancies in your information.
I hope this helps, let me know the outcome.