I don't know if this is just another symptom of CFS but I have days when I feel nauseated all day and whatever I eat just sits uncomfrotably in my stomach for hours and hours. Food is not moving at all and I feel on the verge of throwing up all day but I don't actually throw up. Then usually in the evening the feeling is gone and I would even be hungry and able to eat something. I would also have days and weeks that go by without this feeling then it would suddenly come back again. Does anyone else has this?