To smell or not to smell?

For the past couple of days, I've been experiencing something that's called "Phantosmia" - sensing smells that aren't there, also known as olfactory hallucinations. Weird huh? I've had these before, but it comes and goes. When I was cooking the other day, I thought I smelled smoke, and panicked thinking I burned the beef on the stove. But then, after looking at it, it didn't seem burned, or tasted burned. Most of the time, my smelling senses seem blunted, and I can only smell this one smell thats so hard to describe. It's not smelly, smells a lil like perfume, but a very subtle one. hmm. maybe I should get this checked. Lol , it'll be funny if this could be the down side of too much caffeine.