Suggest Remedy For Involuntary Muscle Twitches And Restless Legs

I have restless legs,Involuntary muscle twitches , cramping. foot swelling, pains and one or two bouts of sciatica plus varicose veins at various times in my legs. Though I am nearly 84 years I often walk 4 or 5 miles several times each month. My father s father had phlebitis and my mother died at age 98 from heart failure. I am 5 -10 and weigh 160. What can be done to improve circulation in my feet and legs?_drugs to enlarge arteries, stents, etc. Kenneth V. Johnson