Hi. I am sorry for all you are going through. I hope your rsd doctor can see you too. I would call everyday for cancelations. That is what I do with my doctor apts and I have gotten in way early. I too get migraines and head aches/pressure. I have this possibly in my eyes so thought it was due to my severe eye pain. Anyhow I had by my neuro mris,etc to rule out anything else so I agree that you may want to ask about that. I always get fearful of saying it is rsd because one day who knows it may not be and I don't want to let something go. Well take care and hang in there