My cat is hissing, coughing and acting strange

[Nikki]

I need help. All of a sudden, my four year old cat Ozzie has been hissing at me. I also heard him cough a couple times. I've never seen him have a hairball, either. He is fixed, and stays inside all the time. He started hissing at me, and crying outloud. I felt allover him, and there seems to be in no pain. I saw him eat this morning, and he was drinking water.
Last night, he was sleeping in the bathroom, and when he walked out, I heard him hiss at the dog, but the dog wasn't near him or bothering him. I put him on my lap, and he seemed depressed, and looking around all dazed. He cried some when I moved him. He let me feel all over him, without a cry, I didn't find anything wrong with him. This morning he hissed again at me, like he was scared. Please help me, if possible, I know this is a pretty vague question.
Ozzie is a lover cat, this isn't like him. I also have another cat who is in good health, and I haven't seen him his at her. Both cats are indoors. Thank you very much[/i]

[kkay]

Hi,

This warrants a vet visit right away. Change in a pet's behavior could mean your cat is sick. Please do not delay. Let us know what the vet says. kk

[Nikki]

Thanks for your response, I took him to the vet, seems that he just hurt his back leg, because he was limping when I went home yesterday after work. I feel so relieved it's nothing serious. Thanks for caring.

[kkay]

So glad to hear the good news! What did they say was wrong with his leg? Hope he gets better really soon. kk