I want to say since I was about 15, I've had a smell that comes & goes. When it would come, it was constant & would last in spurts from 3-7 days. It's always been a sweet smell; at first it was strong of cinnamon, then after several months it smelled similar to the zebra stripes gum. I'm 21 now, I've been smoking cigarettes for 3 years. Have never been on any medications either. Here lately the smell has been very strong & sugary. And somewhat chocolatey (which to me is a horrific smell). It gets stronger when I do something directly to my nose; mainly blowing my nose. But I have not noticed anything other than that that triggers the smell. And although sometimes it goes away for short periods (a few hours), it's almost always constant & has been for a few months. Why the heck do I constantly smell the same thing (from Tennessee to California btw)?? People think I'm crazy when I talk about it...