Ernest,Did your doctor ever check your thyroid function?and did he ever check you for possible depression,if you have alot of stress it may I believe be a factor in which you could become depresssed without realizing or knowing it and depression can cause fatique and alot of other problems such as pains in certain people and more,also did you ever have you heart checked out?You say you have some pain but dont say where,1 thing with Fatique that comes to my mind is possible Sleep Apathna which people that have this can be tired all day,believe me I have this and I also suffer from Fatique,some of this could be from my sleep apathna,but i also have a low functing thyroid,which can also cause fatique,I also along with a Huge medical problem list suffer with Fibro myalgia,if your not sure what that is,it can cause joint/Muscle pain and other problems in some people,perhaps you can also be checked for the possibility for that.Jim