Updates to iOS7 last night and had full Charge on.... This morning ive only got 48% is this going to be a big battery drainer?

I have tried all of the fixes suggested on here but my battery continues to drain VERY fast. The phone is only about a year old 4s and worked fine until the update. Now I can have it plugged in during the day, not touch it at all and by 12-1 the battery is dead (even if its on the charger). I know the charger works as we just used it for my moms and there were no problems. Before the update I would charge it durning the night and depending on how much I used it I would have to charge it late afternoon at somepoint (and I thought that was a lot). Now if i open an app to see something it often goes from %100 charged to loosing %50-%75 of the battery power.

My phone is also getting very hot to the touch. I have always had a case on it but recently broke mine (Guess the case worked it broke but my phone is fine) and I havent gotten a new case yet. I'm not sure if that is normal or if something is wrong with the battery/ and or phone causing it to overheat.

I have also allready tried the fixes mentioned here and tried to uninstal 7 to go back to what what there but non of it worked

Message was edited by: brownd78