When Sam remembers what he said in anger, he'll be utterly sick with remorse. But right now his head is muzzy with exhaustion and the withdrawal and it's enough for him to remain focused on the moment. Slowly he shakes his head. HIs throat is parched and he's pretty sure whatever Dean brings him to eat he'll have a hell of a time keeping it down. But he'll try.

"No. 'm okay. Just tired."