My Zane will go through the house yowling. He doesn't seem to be in pain in any way, and he doesn't want to play or be petted when he's in one of these moods. He'll sometimes stand in front of his water dish and paw at it when yowling--and I keep it full, and freshen the water often. (I tried getting a fountain, but he wouldn't drink from it.) He'll often get these jags at about 6:30 in the AM, but he's likely to get them at any time. What causes them and how can I get it to stop? (BTW, I've taken him to the vet, and there's nothing wrong with him physically. The vet suggesed Prozac, but Zane is a hard cat to pill, and I think that giving him the Prozac would traumatize him more than whatever is bothering him. Besides, we tried it before and it didn't do much good, it just acted as an appetite stimulant, which is the last thing a cat who looks like a furry rugby ball with legs needs.)