I went to a gp on friday,and talked with him about the vomiting and nasusea i have been having. he is sending me to a gastroenterologist also getting blood checked,xrays of abdoman. Here is my question i have this lump on my left leg just below my knee i have had this lump for awhile and sometimes it hurts to touch it ,well i had him look at it and he said that my left leg was darker in color than my right leg .i was trying to take in what he said and forgot to ask what this means. My friend said maybe there is something blocking the flow of blood to the leg ,ihas this happened to anyone else and what did you ndo for it