Both cats have been puking lately. They never did that before (aside from when Ron's gotten out and eaten grass). They seem like they feel fine. At first I was a little concerned because of how Raven was missing. I thought maybe she'd eaten something. But now, I notice that Ron's puking too. I haven't changed their food or anything. The puke looks like poop (sorry). I suppose it could be because they are sheddding so they have fur in their stomach. But if that is the case, you'd think it would be happening all summer.

I'm soooo tired of going to the vet all the time.

What do you think could be causing it? Anything I can do to help it?