Hi am 21 YEARS OLD and i weight 104 pounds. I am recently experiencing several undiagnosed problems. I am on vitamin D, potassium er and predisone. I have several symptoms but the main ones that bother me the most are dizziness and pain and tingling throughout my body from my head to my toes. My veins pop up and it hurts. At times my entire body feels heavier than usual. could this be something to do with circulation?