Mystery illness - seeking opinions

[kosdancer]

This is the description for POTS: "POTS can cause lightheadness, fainting, tachycardia, chest pains, shortness of breath, GI upset, shaking, exercise intolerance, temperature sensitivity and more." and a website as well: http://www.dysautonomiainternational.org/page.php?ID=30

 

[Rtn87]

Thanks for your replies!

I have looked into POTS and even EDS but no testing yet. At this point I'm thinking of traveling to a Mayo Clinic. Does anyone have experience with them? I feel like they're my best bet for diagnosis.

I really want to thank you guys again for hearing me out.