Recently, my sexuality has made me cry, panic, and just get down right sick. I'm not looking to diagnose, but I just need some outside opinion.

I dont want to be gay.
I have no desire to be in a relationship with a girl.
I dont find them sexually attractive.
I know I can love someone like a friend, family, sister.

BUT

I fear that things make me gay/bi
I fear that my friends are proof that I am gay. [Most are gay, bi, pan, etc.]
I fear that because I write characters that are guys in my books as main characters, that that makes me gay.
I fear that loving someone, such as a friend, makes me gay.

Can anyone tell me how I can deal with things like this? I know they're stupid thoughts that arnt mine, but I cant stop thinking about them!