In my opinion there's no such thing as everyone being normal. Being normal would mean we would all like or love to do the same things and that would be a boring world and life.
We all love different things and what makes someone else happy may be disgusting or not loved by another person and that's okay.
You're not alone in your love for diapers just check out
http://adisc.org and
http://dailydiapers.com and you'll see lots of other diaper lovers who love wet diapers just as much as you and I.
I used to think I was alone and a freak for loving to wear and wet diapers and sit in the urine but after awhile I started to accept myself and I'm glad I did.
There's nothing wrong with wearing diapers just because you love to wear and wet them.