O have the same issue and ots because of CHF and being overweight, salt it bad for us as adds fluid overload that sometimes makes our heart work even harder on top of my severe PH. Fought obesity my entire life. My PH caused by autoimmune disease which attacked my liver years ago caused due to cirrhosis autoimmune hepatitis. We live in fast food world, salt in everything sodas frozen foods. Need to avoid but so difficult.

Ron5:
Two reasons that I am aware of but do not know if they apply to you or not, are being overweight, especially in the stomach area and fluid retention, which can be a sign of Congestive Heart Failure. I would suggest perhaps a call to your PAH specialist might be in order, to find out what exactly is going on in your case. I am sure you already know this, but salt is our enemy and can be bad for fluid retention. Hope you find answers soon.