I'm not too sure about the smells, but everything else you listed sound like sensations from anxiety. The pains you feel is from when your body tenses up with anxiety...this can also cause headaches...BIG TIME. I suggest reading the anxiety symptoms sticky thread on here. You'd be surprised and what anxiety can do to the body and mind. And the more you focus on how you're feeling, the more the symptoms persist. I wouldn't doubt the smell is a part of it though.