That sounds like it's quite frequent, so personally I'd probably take her in to be checked over. In the meantime though, I think that I'd stop everything "extra" right now and only give her the dog food to see if her system calms back down. Our kids have food allergies, and a typical approach when you don't know what's causing a new problem is to eliminate everything that is new to their diet and see if the problem goes away. BTW, Daisy had been on gluc/chond/MSM for a couple of years with no problems and then broke out in a nasty, itchy rash from head to toe last year. Vet couldn't figure it out & benedryl barely helped. I took her off of the g/c/MSM & it went away. Vet's guess is that she'd developed an allergy to it, though it had been fine before. Just a thought... Also, if nothing else helps, you could try switching her to a single protein food like duck & potato or fish & sweet potato to see if it helps. Daisy eats only d & p and it works for her.