muscle pain or something worse?Ive been to to many doctors and no answers I need? it started three years ago, a pain in my right chest beneath the breast bone.It would hit me in stress full situations.Then I would wake up not able to catch breath.That has stopped.But I still geta feeling of heaviness in my chest and my arms.Not a pain but a weird feeling like something is there.I have had numbers of test done including  gall bladder exam 1yr ago,xray of chest 1 yr ago,esophigus exam 2 yrs ago,cardiac stress test and dye of veins 1 yr ago, ekg last week.Nothing!!!!!!!!!I noticed my bow movements have changed and It now feels like sludge.I also get this heavy feeling when im in pressure situations.I get light headed and my hands tremble and sweat.Im 28 yrs old and a male.I cant figure out for the life of me whats going on.I have been put on blood pressure medicine, my bloodpressure is steady at 128 over 85.My opain also hits the lower chest right below the breast bone.Sometimes I get unstoppable heart burn in this area?my temper has gone way high since this began?advi

Summarized question: What are possible causes of heaviness in chest and arms, bowel movement changes, light-headed, hand tremble, and sweating?