I see.... well can't say if I could say what I felt is the same as you, because I do not know, but do know that you're not alone in your feelings me too had a difficult week last week, haven't felt that terrible in years for myself.
I have the head shake deal too! What are you on to fix this? Does it work??? Everyone thinks I'm just a freak now. Even my family doesn't want to put up with me anymore.