This is a little un-related but I'm having a heck of a time differentiating MS stuff from all the sinus junk I'm going through. I've been diagnosed as having "non-allergic rhinitis" which basically means "we have no clue why your sinuses are messed up". I have post-nasal drip and am congested all the time.
I also have trouble taking a full breath sometimes but I'm not sure whether that's hug-related or not. I think it's time to head back to the allergy doc and see what else they can do. Don't you hate that everything can be attributed to anxiety? For sure, it can be a factor but not always. Feel better!