Help:( phone charge problem!?!?

hi guys i have a probelm which i mentioned in a rom post but no one seemed to have an answer/not care.
My phone EVEN though its plugged in charger it chargers down?! Even small usage and its a no go. It will only charge if i dont go on it. Its been happening for 3 days now and ive had this phone for 2 months.
I have:
Original out of box samung usb charger (no mains supplied)
firmware NC4
ROM google play edtion 6/19/14
KT kernel - settings are: conservative, cfq, no oc/uc, gpu 320-545, fast charge disabled.
Tried kt + row too.
Phone is reading 61 degree temp not charging only on chrome writing this thread.
61 degrees is too hot for this no? Maybe i have virus/malware/trojan?
I dunno but plz any info would be helpful many many thanks

Hard reset will not work ive tried that before on a previous phone years back. The problem eventually came back. I dont think its hardware coz phone is brand new (2months old) not dropped or owt. Maybe its an app but i deleted one recently cant remember now and since then bam! Phone over heats like fire. Phones not slow, no lag just battery drain is at its worst and over heay is terrible