Mere, YOU are not a drama queen!
You have valid concerns. This is a frustrating condition. I have slipped quite a bit in the last year, and it is disconcerting. You have every reason to be concerned, and I am glad you are getting this testing done. This disease has some really odd symptoms, and every time I get a new one, I go thru a process where I do not believe myself initially. I have found some useful info at the Dysautonomia Information Network. (Altho this forum here is my 'home' and I have yet to find a comfortable place other than here.

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We have a very similar syndrome. I will be interested in what they have to say about your case.