I am having severe cramps in my right leg anytime I lay down or during sleep.These cramps are not muscle only but alot of the time it seems like its really deep in my leg from my groin down to my ankle,I feel like its almost my artery or something.I am on synthroid 1mg a day and 75 mg of atenolo.I also take calcium D,B-6,and a daily vitamine.I have had these for 6 months or more now.before this I was having the regular muscle cramps in my legs at nite. Help?? I have asked my regular doc but he doesnt seem to think its a problem.