I have quite a few allergies, but luckily, they are not severe.
-trees, although I've never had a reaction.
-horses: they make it hard to breathe.
-cats: although I have a cat, if she sleeps in my bed or if I pet her too much, I get hives all over my face and on my chest, and my eyes swell, I get a runny nose and it's hard to breathe.
-dogs: I have a dog too, and I get the exact same situation as with cats, only not as bad, well, at least not with my dog.
-dust: hard to breathe.
-dust mites: nothing.
-also, some types of bird's (I'm not sure which ones, though) feathers: nothing.
that's pretty much it, but supposedly you're allergies change every 7 years (I could be wrong, thats just what I heard). So if that IS the case, luckily I probably won't have these allergies by the end of the year. =D