I'm from Holland, so sorry if my English isn't perfect I've been diagnosed with ME and POTS this year, I've been sick and fainting for as long as I can remember and I'm 26 right now. I've been taking Lysine and it makes me feel a bit better, actually a lot better. I've been reading about NO (Nitric Oxide) and that this could be the reason that I feel better when I take Lysine, because Lysine slows down the Arginine that produces the NO. I do have vasodilation, so it fits the rest of the story. So you would think that this would mean that I have too much NO in my body. So is it safe to say that I have normal flow POTS? My doctor didn't know much about the NO story, so that's why I'm trying to find stuff out myself, I think there's something there. My doctor also thought that I have low blood volume. But I've read that normal flow POTS patients don't have low blood volume, is this true? He also wants me to quit taking the Lysine after 2 monhts, but I'm afraid to get worse after I quit the Lysine. Is there anything else that I could try to relieve my POTS symptoms? I've tried stockings and taking more salt and fluids but they didn't help at all, so I think my blood is pooling in my abdomen. I always need to go to the toilet after I've been upright for a short while, maybe that's a clue. My gastro intestinal system gets upset a lot. I've been told that I could try a diet with less carbohydrates and nitrates. As you probably already understand, I'm looking for answers, I want to know everything there is to know about my health issues. Anyone that could help me with that?