I'm really worried about my cat. I got back from class at about 12 today and ever since I got back, my cat (about a year old) has been either sitting in the litter box for extended periods of time, or walking around sort of strangely and meowing a good bit. He hardly ever meows and is never in the litter box for more than a minute or two. Any ideas of what could be the matter with him? Only thing I can think of is that it got really cold here last night and the bathroom where I keep him at night got down to maybe 50 or so, could that have caused some of this behavior? could he just be constipated or something maybe? Thanks so much for any help.