I've been smelling chemical like things in my room while no one else has for 2yrs?

Hi, I am 15 and I have been smelling this horrid smell for a while. It started out as a smokey smell, and now it is this really harsh chemical smell. It smells like pool cleaner, chlorine, bleach, mayonnaise, and something really harsh that I can not explain.

Here is the weird part- NO ONE else smells it. Not one person, they all think that I shouldn't be complaining... so nothing has been done about it. I'm really at the end, I just can't take it anymore.

Another strange thing, I only smell it when I enter the room, and then it fades after about 30 seconds, and there seems to be no source. Oh, and sometimes, if I have been gone for like a week or the weekend, I won't smell it when I come back until like an hour later.

What should I do? I might just have to move out and move with my grandma... but I really don't want to give everything that I have up to move just because of this smell.

It's not a little annoying smell I'm complaining about, it's very harsh and it makes me feel sick sometimes.