Yes, they use everything. Play it up, no matter what it is!! Tell them EVERY LITTLE THING, no matter how insignificant you think it is. But I have to warn you, most of the time, these Drs still say there's nothing wrong with you. Don't worry about it. That's what they're paid to do. In most cases, their questions and/or tests don't go deep enough to prove anything.
Good luck! I've got my fingers crossed for you!
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Psalm 119:105 Thy word is a lamp unto my feet, and a light unto my path.