I am 66 years old, diabetic, obese, underactive and have had prolonged stress issues. Several days ago I had an extremely upsetting run in with a furniture business person. Since then I have developed extreme agitation, little to no tolerance and over exaggerated frustration with the smallest issues. I have intermittent tightness in the mid chest. Is it anxiety or my old bi-poliar symptoms returning after 12 years or signs of an impending heart attack?