Are you my boyfriend?? LOL!
Seriously, tho, you could have just written his fetish bio with your description of yourself. Exactly the same, from a young age, obsessed with women's feet in heels (especially when they are in nylons!) He LOVES the smell of a bit of "clean" female foot sweat mixed with the nylon and shoe leather from a day of wearing - it drives him absolutely bananas. He also enjoys "normal" sexual practices as well, and isn't just obsessed with my feet and not the rest of me, and me as a person. He is a wonderful, loving, fella who just happens to find nylon feet in heels the epitome of sexy. l So no, you are certainly not alone, and its not so weird at all!
You are totally normal. A fetish is only a bad thing if it involves harmful behavior, which yours does not. I used to be an exotic dancer. Please let me clarify that being an exotic dancer does NOT include prostitution (at least it's not supposed to, and I never did that). I had several regular clients back then who would come to see me just to have me allow them to caress my feet an smell my shoes. Sounds weird, but I liked these guys because not only did they pay well, I got a foot massage, too. Compared to some of the other wacky fetishes I came across, the foot fetish guys were always fine by me. :)
You could certainly look up fetishes (on the educational sites, not the porno sites). Foot fetishes are indeed pretty common.
OH YES, My husband has a friend who has a foot fetish just like you..Lucky for him his girlfriend doesn't mind it one bit. She always makes sure her feet are nice and soft but he's more of the scent of her foot so sometimes she won't wash them b/c he likes them a lil stinky (TRUE STORY) ..LOL I think you're fine. Hey it's your thing..No need to worry yourself we all have weird fetishes and there is NOTHING wrong with that!