My thunderbolt I've had since the day it came out and not until recently has it just heating up. Yesterday my battery drain completely from 6 p.m. to 11 p.m. and I hardly touched it. I picked it up about 9 and the whole phone was just hot the whole phone back and front. I've also seen the phone as it is on the charger just heat up any one else have this problem? Should I just take it to Verizon and is this covered by warranty?