Stressed cat

Hello I have a cat, he's sterilised and 6-7 years old. We accidentally left him outside of our apartment complex and he got on the roof. After I got him down, he's screaming his lungs out in front of the door. At first we got scared he was in pain. We can't let him free roam, since there are dogs that go to the roof, as well as another cat twice his weight. The cats met each other, but we didn't hear any form of altercation or fight, no visible wounds either. Is he just being stubborn, or could it be that there's something wrong? What can we do so he'll stopped stressing himself and us out? He was screaming all night, we barely slept!

Important notes: He's eating and full of energy I recorded him but can't upload it

Hello - and thankyou for your question.   Your cat is quite old so I assume that if 'he' were to turn out to be a queen (female), you would expect to know by now.  You may well be familiar with the idea that female cats 'call' for mates at this time of year (assuming uk); however, it's worth mentioning that this behaviour is not confined to female cats; males can do it also, so its possible that this is what you are seeing.  There are many pathological reasons for pain in cats - and pain is difficult to spot; owners of animals in pain frequently say 'he is not in pain' because cats are so poorly demonstrative.  Pain while urinating in particular is an emergency and should be identified quickly, so it is definitely worth checking that your cat is able to urinate normally.  However, what you are describing could also very easily turn out to be non painful mating behaviour.  If ypur cat is entire, this may be normal; if they are not, it could be unexpected.  Perhaps if you could record it for your vet, they could also check your cat over and give their opinion.

I hope that something here helps.

My apologies; I just found in your notes that your cat has been neutered.   In this case, it seems that something has changed.  This could be a social change or abnormal production of hormones in your cat, or also pain that doesnt present asyou'd expect - but in any of these cases a veterinary consultation does sound to be a good idea.