I am 42, 5, 8" and am disgustingly 13 stone. I have recently been diagnosed with over 10 stomach ulcers having suffered with abdominal pain since Feb 2011. I've had a colonoscopy which was pronounced clear even though there was 'cloudy fluid' and after my endoscopy when the ulcers were discovered my consultant has requested another colonoscopy be carried out (although noone seems to know why). Anyway my current problem (and I don't know if they are linked) is that I have severe fluid retention from the knees down to my feet on both legs. My skin is also mottled just above the ankles and the soles of my feet are extremely painful. I also find it difficult to walk due to the pain. Should I walk more or sit with my legs raised above the level of my heart ?