Can't sleep after having tonsils and uvula removed and septum rebuilt.?

I went in last Tuesday and had my tonsils removed, my uvula removed, and my septum rebuilt. The pain is still excruciating at times. Here is the problem:

Drinking water is painful, eating is almost entirely out of the question. I've lost 12 pounds in the last week. I do still manage to get about 1/2 - 3/4 gallon of water or gatorade down every day.

When I go to bed, I can't breathe through my nose due to the splints that are in there until this Thursday. So breathing through my mouth, it dries it out so bad that after an hour of sleep I wake up with my tongue stuck to my cheek feeling cracked. If I drink anything at this point it shoots pain through my saliva glands, and all down my throat.

I have bought a cold air humidifier, and been running that at night with no change. Has anyone had to deal with this trio of surgeries, and how did you do it?