I have a 3 year old male cat. I got up this morning and he had vomited probably 7 or 8 times around my apartment. He has been acting a bit more lethargic than usual, but he didn’t vomit again for at least 7 hours. Now, he has vomited probably another 7-8 times in the last 45 minutes. Should I just keep my eye on him and see if he gets worse, or do I need to bring him in to the vet now?