I am a very healthy 65 year old woman who exercises regularly and typically can treat any minor ailment I might have holistically. I do have some arthritis in my right hand and right knee. Recently, I have been having a fairly severe aching...I would describe something between contractions and a migraine headache in my right shoulder blade that extends to my right forearm. It has gone on for several days and today I also feel rather listless or weak which is quite unusual for me. Although, I have noticed that when I have had an arthritis flare up I have also felt tired. Thank you for any help you can offer.