For the past three days my cat as had excessively foul breath, very low appetite, been frequently passing gas, a slight case of diarrhea on day one and grown very dependent on me, always wanting to sleep in my lap. He is just 7 months old and usually very active, not wanting to lay around for too long. I should add that he isn't totally inactive now. If I'm up and walking around he still pounces around and attacks my feet, but he doesn't usually want to cuddle as much as he has been. I did have a recent break up and my ex moved out (he was pretty attached to the guy), but otherwise I can't think of anything that has changed. Should I go see a vet or could this just be an episode of separation anxiety?