This is for my sister. She is in her early twenties and a healthy weight. She has had very little health problem other than having her adnoids removed as a child. For a couple years now.. when she stands her feet are bright red. The docs assumed it was poor circulation and did some test to see. They did many tests on her circulation which came back fine and her heart which came back showing she has Mitral Valve Prolapse in her heart. They said it wasn't serious and shouldn't cause her much trouble. Recently she has begun having dizzy spells. She even has them lying down too. If she stands up too long like 20 mins on her feet she begins to feel like she is going to pass out and has to sit down. Recently while sitting she had one of her dizzy spells that made her so sick she couldn't even get up so we took her to the ER and they ran all kinds of test like an EKG, some test where they take your BP lying down, then sitting up, then standing up. They also drew her blood because we thought maybe she had low sugar and everything came back normal. Do you have any suggestions as to what we should ask the doctor for regarding tests or what this may be? The only other problem I can think of she has is I know she has a hiatal hernea(??spelling) and her stomach hurts her alot. She hasn't started on any new meds except she started birth control about 4 months ago but was having the red feet prior to that.