I am 65 years old. I am having restless sensation in my calves after I go to bed in the night for the last 8 years. It starts mostly within half an hour to an hour of hitting the bed disturbing my sleep. I have to keep stretching, turning and twisting for a long time before it subsides. Initially exercising of calf muscles would improve the situation but for the last two years exercises do not really help. Is it rls or something else? is it attributed to some deficiencies? do I have to get some tests done? pl advise me for diagnose and remedies.