Probably a bit gross/TMI, but... when I came home this evening, I noticed that Henry had blood all over his butt. I checked the litterbox and there was a lot of blood in his stool - after washing him off, it's obvious that the blood isn't coming from his butt itself, like from a cut, so it must be something internal.
I'm going to take him to the vet first thing in the morning. Could Henry and I please have some vibes that it's nothing serious - he's only a year old, and he's only been with me for a few months - I hate to think about what could happen.
Thanks so much.