Yesterday, I was in a rush and I left my phone charging in my pillow. When I came back, the phone was VERY hot. It still worked but the battery stopped at 55%. I was gone for 2 hours so it would have fully charged by now. I let the phone cool off and I reconnected it to charge. But then I noticed it takes 10 minutes just for 1%! I let my phone fully charge for the next day, and then the battery dropped 3% before leaving my door. It already dropped 2% by the time I finished typing this. Help!