Question about experiences with being diagnosed for the first time

Hello everyone.

English is not my first language so I apologize for any mistakes.

I just wanted to ask how the milder forms of POTS are diagnosed? (///^///) How long it usually takes and what it looks like... etc. I appreciate any similar experiences or answers, even if it's just lifestyle strategies…

I've had symptoms for about a decade at least now, and I'm currently trying to get diagnosed, so I got curious about the whole experience (I'm trying to temper my expectations so i don't get blindsided if I'm dismissed the first time, since I'm a woman and pretty sure have chronic anxiety, so yeah...), especially since many stories I hear about being dismissed without any tests or anything are making me extra nervous.

Thank you very much in advance, and I wish everyone a nice day.