I have a swelling of musclefibre on the right upper arm causing much pain- in the deltoid; this flare up happens from time to time; has been there for the last 20 years. This happened when I suffered a muscle pull while tossing a garbage bag some 20 years ago. I am 78 years old , had open heart surgery , aortic valve replaced, mitral valve repaired and a pace maker implanted in December of 2012. I ingest Lipitore 40 mg, aspirin 81 mg, Olmatac 20 mg for BP and Atenelol 20mg.