I have two cats named vishous and lambda. Lambda is just over 12 months old and weve had her since she was 7weeks old. At 3months old we had to start giving her adult food as she refused to eat kitten food. She used to eat to much for her small stomach and would sometimes vomit. The vet said this was nomal for a young cat on adult food and to reduce food left out if she wont eat kitten food. However over the last week the vomitting has got more frequent. At first i just thought she was being a pig again. But shes not eating as much. Could it be hairballs?