I'm 16, I have been hating sweet foods and candy all my life - is that normal?

Ever since I was a kid, I have been out of the crew - I rejected offerings from friends, family and other people for snacks and sweets. I just hated (and I still do now) that has any sugar, frostings (including cake and ice cream) and sweet tastes to go with it. Since then, I feel really bad rejecting people's gifts but as the old book says: Literally all children love sweets. Is there something wrong with my life growing process, or is it just me?
I've been always curious about this; Whenever my friends have birthday parties that they invite me to I never tend to have any slice of the cake simply because I have a slight feeling of disgust whenever I smell the breeze of sweetness or taste it. Is this normal? Please help me.