Oh, I sure hope it's no pancreatatis! I always thought if she had that, she wouldn't keep her food down, either?

Yes, sometimes there's green stuff in the vomit, but not always. She's only chewing on plants in the morning before she had breakfast, either because she's hungry, or because she's already nauseous from the acid in her empty stomach. She's never chewing on gras after she has eaten.

I started giving them a little bit of dry food very early in the morning today, and of course they loved it! We'll see if this helps. But I think it's a good idea to ask the vet about this, nonetheless...