Almost the same issue. I have owned mine since last June. I always take it off with shower/dishes etc. I've always been paranoid that the water will effect it in a bad way. But, tonight I went swimming (first time it has been in water) for about 45 minutes and it is doing the same as yours. After the swim I dried it thoroughly. It started to drain battery very quickly. I noticed it wasn't tracking my pulse anymore so I tried to reset it multiple times. It didn't work. I put it in the charger and came back about 30 minutes later and the screen is completely off. It will not turn back on. Very upset and disappointed with this. Fitbit should not market this as waterproof if it, in fact, isn't. I doubt they'll do anything to appease this situation.
