My little man keeps spiking a fever and dry heaving

Last night he had a fever of 100.5 but then 20 minutes later it had spiked to 101.9 I gave him tylenol and took him in to the doctor. She thinks its just a virus. I re-checked him throughout the night and he still had low fevers all night. By this morning he was still feverish so I gave him motrin, but not 30 seconds after I gave him the motrin he started dry heaving on my shoulder I gave him some water and he seemed better, but he's so cranky and keeps resting his head on my shoulder like he's sick. The poor thing I cant get his fever below 100.7 today. Not that that's terrible, but I just feel so bad for him.

Also, the AC in our house is broken and while I have his ceiling fan on and the curtains drawn, his room is a constant 80 degrees. I'm sure that's not helping. I dont know what else to do to cool the room down Is it terrible for him to be sleeping in an 80 degree room all night??