POTS turned out to be Fibromyalgia?

Hi all! I just started meeting with a new neurologist. The assumption with my PCP and Cardiologist for the last 1.5 years is that I have POTS. I had a tilt table last week and it stated that they could not rule out POTS based on the results.
I had a honestly really good appointment with a new neurologist. He sat with me for an hour going over not just my neuro symptoms, but all symptoms I deal with on a daily basis and the history of those symptoms. We quickly got to a point in the appointment where he was asking very pointed questions, essentially being able to predict the next symptom that I’d be talking about. He asked if anyone talked to me about having fibromyalgia before, as I meet and exceed all criteria.
He spoke with me at length about the history of the disease, current studies and treatments, and went into his recommendations.
All in all it was a very good appointment, but I am surprised at this outcome. Has anyone else had this? And if so, how did treating your fibromyalgia differ from treating your POTS if at all?