I ve been having cramps in my legs at night while sleeping for quite some time now, perhaps 2 or 3 times a night. Sometimes the pain is in my calves, or in my feet, either in the arch of my right foot, or starting on the top side of my left foot. It s been happening now for about 3 months; nothing in particular before that with the exception of the odd time, which is probably quite normal. It seems to be worsening; is there anything I should or could be doing about it?