Battery Low [Q] LG G2 TMO - Horrid Battery Life and HOT

Ever since the Kit Kat update -- my battery life has been bad.

I used to be able to get almost 2 whole days on one charge - I loved it.

Now I'm lucky to get about 12 hours and be at 20-30%.

The last week or so, my phone gets incredibly hot near the top 1/3 of the device - front and back. The battery life is abysmal. I can be from 100% to 20% in a few hours. ON top of that, it's charging REALLY slowly. I plugged in last night when I was down to 5% and was browsing the web and the battery actually went to 0% and shut off. That was the first time it's done that. I let it charge and it got up to about 80% by 6am this morning.

What's up with this thing? I am doing a backup now to do a hard reset. But I'm afraid if I restore the backup whatever is happening will just happen again. Any suggestions?

Side note - I ran it in safe mode yesterday and went from 8am to 4pm using only 15%!!!