Is it normal to love getting choked by clown during sex?

So I have really been into erotic asphyxiation all of my life, and most of my partners are either hospital clowns or circus performers. One night when I was with my boyfriend I asked if we could do it while he was dressed up like a clown. He obliged my request and soon we were at it, belt around my neck and all. I'm not sure how many people i have done this with now but it is somewhere in between 10 and 20 times (sometimes with same partners.). Is this normal?