Fluffy is 10 months old and a huge fuzzball. This past week he has been laying around, coughing a little but never coughing anything up. Plus, his meow doesn't sound the same! It's like he's got a cold or something. I thought maybe while wrestling with his brother he accidently got a claw in his throat. His purr doesn't sound the same either and he occassionally bobs his head like he's choking. Is this a hairball? If so, wouldn't it have expelled itself already? His appetite is still as ravenous as ever, but he just isn't quite as playful. His sound has changed and I'm really worried about him. Should I go buy some hairball remedy stuff? He's an outdoors kitty and gets to sleep inside at night. These babies are soooooooo spoiled!