Hi,
over the years I have posted on this site about dysautonomia and the link with autoimmune diseases. Many of you have commented in the past about having low blood pressure / palpitations / tachycardia.
http://http://www.dysautonomiaintern...age.php?ID=180
This link from Dysautonomia International has some interesting information especially points 3 and 4.
I hope that if you are having the symptoms of PoTS (a type of dysautonomia) you find the link useful.
Rach x