I got a hold of the vet.

He said it doesn't sound really serious, but he can't really tell over the phone. He said if he was blocked up, he would be in a lot of pain (like if I touched his belly) and I would be able to feel something fairly big in that area too. (which I couldn't) He said it sounds like it's irratated or something, but he should be fine for tonight. He said it would cost $90 if I took him in now. I told him I would leave it, and if he gets worse I'll call again. He laughed and said I guess I didn't explain it right, if it's in the middle of the night it iwll cost more. I felt like saying I really don't care how much it costs if it saves his life.

Anyway, I'll call around 8 tomorrow morning and see if I can leave him with them for the day (I have to work) and hopefully they can check him out sometime in the day. I'll keep an eye out if he gets worse.