Neo has been coughing up hair balls and gagging but not coughing anything up. It is making me really nervous. We are getting him to the vet ASAP. He has never had hairball problems before but now he is clean himself, moemoe anddddd sebastion (they all clean each other
) should I switch them to a food to help prevent hairballs?? They are eating normal adult cat eukanuba (I know, I know but after reading and reading this is what I think is best for my guys)