i get phantom smells sometimes when I get a migraine. it's just odd.

i sometimes get a sulfer or rotten egg taste in my mouth and stomach that can turn into burps and also just have that smell in my nose.

I have found that I have become very in tune with noises and smells that most other people don't hear or smell. I find that smells I didn't like before or were benign are way stronger when a migraine is present. Phantom smells, as I call them, are pretty normal for me. I carry around a roll on of eucalyptus and lavender essential oils so I just smell that if the phantom smell gets overbearing.