battery drain due ... ?

Hi everybody,

I'm using Jellybeer rom v.4.32 since hits relase and all works good.
Since a few days battery drain is very high and my n7000 ia very hot under thw rear camera (the cpu is there ifnI well remeber).

How can I find wath I've flashed that give this high battery drain?
I installed ans removed a lot of app so now is too hard to remember which...

I installwd BetterBatteryStats but I don't understand how it can help me

Sent from my GT-N7000 using xda app-developers app