-Viral or Bacterial Infection -Addison s Disease -PheoChromocytoma -Electrolyte Imbalance -Lyme Disease -Celic Disease -Tumors -Food Allergies -Syringomelia -Parasites -Nutritional Deficiencies -Cancer -Vitamin B12 -Iron Levels /serum iron and Ferritin Levels -d3 levels so far i have found these are connected to getting POTS is any 1 willing 2 add anything they might have heard?