What Causes Severe Pain In Lower Legs And Upper Arms?

During the night I wake up several times with aches in my lower legs and upper arms. I therefore seldom get a good nights sleep.Iam now 83 years of age and this has been happening for about two years, I am quite fit for my age, and go horse riding twiacxe a week and work in my garden Four years ago I had cancet of the oesophagus,which was treated surgically, from which I hacew made a very good recovery.