Went to my primary two days ago and she said she didn't think my fainting/blacking out episode was orthostatic hypotension, due to both the length traveled in my house as well as the immediate BP reading taken afterward. She didn't know much about the RNP antibodies but submitted a referral to my insurance carrier to Barnes-Jewish to see a rheumatologist there (she first tried to get me into the one rheumatologist we had but it was a 4-month wait). I'm just waiting on them to call me to set the appointment up. I'm now hopeful that I will get some answers!
Thanks for all your encouragement--it means a lot!