How did you get diagnosed with POTS?

Wow I’m wondering if I have this. I thought for me it was associated with arthritis. I feel this when I’m tired in mornings and usually after I’ve been working for about 6 hours. I honestly have only been to my internist once since start of Covid. I suffer from cluster headaches almost daily. I’m way overdue for bloodwork.

No POTS diagnosis but unexplained passing out or almost passing out, especially when standing up but sometimes just randomly. Low blood pressure. I’m not even that tall. Cardiologist said my heart was healthy and the other specialist said it wasn’t seizures.

I also get dizzy/lightheaded but idk if that’s due to an inner ear issue or not

2 cardiologists and 2 neurologists over a 5 year period refused to diagnose or even test me for POTS, I ended up going to an internal medicine doctor, did a poor man's tilt table test, I met the diagnostic criteria and my NP was comfortable with making that diagnosis and doing research to help me, sad my insurance doesn't cover her anymore