Left Leg Jittery If Much Sugar Eaten Or Heavy Meal. Why ?

why is my left leg jittery if I eat much sugar or a heavy meal? I know my right leg has restless syndrome and is that way only occasionally. It is very annoying. The neurologist tells me they are both restless and I take Requip (but tylenol helps more) but one seems to act up with sugar and the other does not. Tight stockings and walking does not help. An MRI showed no back problem. I had fallen about 22 years ago and cut some tendons and muscles in my buttock on my right side and was wondering if that could cause what I am experiencing.. I had to have cancer surgery recently and was not allowed to use the things they put on my legs in the hospital to prevent blood clots when I came home. I was up most nights due to the left leg and got only a few hours sleep each day. My recovery was slow due to my lack of rest. IS there a name for it or will I have this the rest of my life? It got so much worse in the past 3 years. It feels as though my left leg is alien and does not belong to the rest of my body. My message therapist tried everything she could think of but with no luck. Can you recommend anything? AAAAA