HELP i surmise my cat may be contained by misery or going to die?

My cat Isaiah comes in and out as he pleases, outside there is a delirious cat i named Tom Cat. they fight when they run into each other.
But only just 5 minutes ago i noticed that Isaiah was really grumpy like growling inside of the house and walking bygone my other cat dexter and kept growling and meowing (they grew up together so that is unlike Isaiah to do.) so i picked him up and started petting him.

his stomach is always very tricky and big, but HE is a MALE so i know he isn't pregnant. So when he was on my lap i started to feel his stomach (worried he may hold a hernia or tumor) i felt nothing?

so i put a little pressure on his stomach to see whether in certain spots he would meow louder or something. HE JUST KEPT MEOWING THE SAME THE WHOLE TIME. so i thought ok maybe it isn't his stomach, so i started to examine his limb (legs) and when i touched one of his legs he meowed REALLY loud and even tried to snap at my boyfriend and I. So i was like woah and moved on.. he got means of access too grouchy so i was going to have him get rotten my lap.. he wouldn't move so i tapped my finger on his stomach and he tried to snap at me.
after he got down he be fine and ran into my bedroom to sleep.

(he runs in the back area alot, i dont know if he eats mice. if that helps)

what is wrong beside him. Is he just in a bad mood tonight? or is he really contained by pain? what could make his stomach hard resembling that? what do you guys think? please don't say vet, i havent got the mony tonight, i find paid on Wednesday.

any advice?
He is probably injured. Take him to the vet and find out if he is OK.
If your cat is injured or within pain (as you seem to indicate that he is) get him to a veterinarian for gawd's sakes! It's silly to put off medical help when a cat definately needs it. His reaction aren't grouchy, they're pain indicators. Go take him and pay the vet when you acquire the money. Waiting could make things much worse.
Cat's that are close to death generally won't agree to someone touch them - They go find a dark, small place (like a corner of a closet behind some cloths, or beneath your bed out of reach,) and just lay down and die. They don't look for help - If his stomach be hard, it could have been an additional large lunch, or possibly stress which would have been cause by the Tom Cat fight. (It makes cats tummies get easier said than done too.)The leg may be injured, but if he's not limping or favoring it at all don't worry just about it. He also probably snapped at Dexter because of the left over adrenaline from the confrontation - Testosterone is a tricky thing - Try not to touch him and just check within on him periodically tonight. He'll be okay.
You should take him to a vet. If its something new, it could be bad, but it could be nought. But better safe than sorry, right?
Vet can bill you if it's an emergency. and it does sound resembling an emergency

so please take good care of your poor newborn he is really hurting rightnow.
I think he's a moment ago still mad about a confrontation with the other cat. You do want to set a vet appointment tho, to make sure he's neutered and vaccinate.

Did you know that fighting with other cats , can give your cat a mixture of deadly diseases like Feline Leukemia, and ever RABIES ??

So while it doesn't sound resembling he's in bad shape tonight, or a true emergency tonight, I still think you should lift him in. Soon.
Answers:    No offense but if you can't afford an emergency trip to the vet, you shouldn't own an animal. That is subdivision of being a responsible pet owner.

Most vet clinics will work out a payment arrangement with you and some will even bill you. I would pocket your cat to a vet right away. Call around and see if there are any who will give support to you out. Avoid emergency clinics if possible because they tend to cost more and be less effective.
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