Not sure if my male cat was fixed, how do I know?

My family and I picked up a male cat from petsmart some time ago. We were told that the cat was fixed. He has been a great cat up until few days ago. We have let him go outside now and again ,but he really is inside 95% of the time. He now runs from us, sprays and meows like crazy. Did are cat get fixed? Is this normal? Help please.

Check under his tail, if you see 2 furry balls he's probably NOT fixed, but you can always take him to the vet just to be sure.

Im dont think your cat is fixed check his bhind, if it bothers you take him to the vet and get it done, even though he is outside for a lil while you might have kittens running around very soon if he finds a female in heat.