Long story short, they think he has a stomach blockage. I am guessing (based on experience) he ate something he shouldn't have, like a ball of foil or a sock or something. We're awaiting more detailed info, plus operation cost estimates.
I don't have a lot of money to pay for an operation, and the option may be to put his to sleep because I have to pay my utility bills. That fucking sucks, and I feel horrible having to weigh this kind of decision.