That's a good idea Aly, I'll try to keep track of his activity/ how much he eats.

Phred, I don't think he would have found any anti-freeze/poison...he's always in my house/yard, the only time he is not is when he's with me on a leash. He's rarely in the garage, if he is it's just to walk outside or something, and he hadn't been there recently.

He may have eaten something in our basement. However, there was diahrea all over the crate, so I think he escaped from the crate because he was already sick...not got out of the crate then became sick, if that makes sense.

He acted totally fine this morning before I left for work, he didn't go anywhere unusual...just woke up, went outside to potty for a few minutes then came back in.