I fed Rad Cat chicken to my cats this morning and one of them just vomited liquid and small hairball right before evening meal. He did that when I tried Rad Cat before, and also with Vet's best hairball. I'm wondering if it's caused by psyllium in Rad Cat and Vet's best. Does anyone have a cat who is sensitive to psyllium? He's otherwise doing fine with Instinct Raw and Primal Raw and these don't have psyllium.