Hi Katrina, and welcome. You might want to read through some of the posts on our Multiple Sclerosis forum; here's the link:

http://neurotalk.psychcentral.com/forum17.html

I have MS, and I do experience phantom smells. Sometimes it's a fragrance, such as fruit or perfume. Sometimes it's an odor, such as cigarette smoke or something rotten. And sometimes it's something I can't really subscribe.