I have been having muscle cramps while doing moderate to heavy work,(cycling, using heavy tools, using extremities to operate machines) and I have experimented with Gatorade, juices and other similar drinks. I have had no good results and now I have been put on anti-seizure medicine for the past 3 years. Other symptoms come and go on a infrequent basis. For example, sometimes I get nauseous and constant itching but the itching is relieved only to start some other place(s).