These people are supposed to be Christians? I'd try another church if I were you and don't tell anyone about your background.
I do not go to church but I had plenty of it when I was a child, enough to make me not want to ever go to church again.
My family and close friends know that I am Bipolar and I never tell anyone else. I thought the bias was lifting against people with mental illnesses but I guess not.
Good luck and let us know how it goes.