Is it normal to be obsessed with the smell of soap?

Specifically Dawn dish soap (original) and Gojo orange.
The smells of them are just captivating, I can't get enough of it. Occasionally I'll grab a Dawn bottle and squeeze it so that air shoots directly from it into my nostril. I hold my breath while doing this, I've found that's how to get the scent its strongest. The smell makes me salivate a lot. I may gag slightly as well, but my desire to keep smelling trumps that urge.
I use Dawn for hand soap, dishes (of course), and for other cleaning, like if one of my cats yaks up on the hardwood floor.
Lately this has evolved from just -really- liking the smell of Dawn, to something of a fetish. The smell turn me on, and I now sometimes incorporate it in masturbatory acts, in which case it's diluted with water and aerated using a hand soap dispenser.