Erin, not to make you feel like your symptoms are trivial, but to help you calm yourself, this is the stuff that happens. I don't like it either but after so many years of it, I've learned to take it one day at a time and rest when my body demands it. It sounds like you have some symptoms excited right now, and it could be another exacerbation, and it may pass if you try to rest it off.

My suggestion would be to rest well until Monday (don't skip the concert, just take it easier than you'd like to) and call the neuro on Monday. I hope this passes quickly for you.