Well, guys, sort of bad news.
I am so sad -- I had to leave him overnight. He does indeed have pancreatitis. I am so glad I brought him in. He will be monitored and hooked up to IV's all night.
His poor stomach hurt so bad. The vet touched his abdomen and he yelped. Also, blood came out on the thermometer when he took his temp.

X-rays came back okay, no blockage or anything. Bloodwork showed high levels of a few things (liver was fine) but he was really dehydrated. I may have forgot the paper at the vets so I will know the exact stuff tomorrow as I don't know the proper wording. I was too much of a mess when I was leaving there.

I've never left him overnight anywhere except my dads house... I cried when I got into my car

It's so weird here without him... but I know he is getting better so I feel like he is in good hands.