Hi.....my Drs seem stumped why I randomly experience massive leg cramps at night. One or both legs...below the knee...could be like a charlie horse or like a shin splints that can move down the leg into the feet... very painful and takes up to 15 to 25 min to walk off. Potassium and magnesium levels are good and I am well hydrated. No correlation to Revlimed...Dex... Darzalex or kyprolis. The cramps average 3 to 4 nights each week. Crazy but very painful. Thanks for any words on this topic.