My Fitbit stopped working yesterday morning I had charged it Thursday night and in the morning it still showed a half charge. I am not sure exactly when it stopped working but when I left the gym and wanted to see my steps it did,t count any of them. I charged it and thought maybe because it was hot and sweat it took the charge and counted some steps but when I went to bed it started vibrating and would not stop and vibrated until the battery was used up. I then cleaned it like it showed on the video, and put it on the charger again. It charged but is not counting steps or lighting up. Not sure what to do.