Alright, so I looked it up, and I think I'm allergic to certain breeds of cats, because I looked it up and it said 'Different cats produce varying levels of Fel d 1, so allergy sufferers may find that they are allergic to some cats and not others.'

So I think I'm allergic to one of my friends cat's but not my other friend's ones, and I looked into the website of the cat allergy and it said that it is possible that I'm allergic to one but not the other

The website was Cat Protection

Here it is

And this is the first question, I'll look more into with other websites