hi, i have had extenive test of my heart, it checks out to be fine, the test were done in december of last year. i am currently having quick shortness of breath, and chest pain which feels like inflamation of the chest cavity in which it seems to come every year. i am getting flutters ever 5-10 mins. my age is 49 506,169lbs. I am constantly clearing cold from thoat. could this be a source of Costachondritis ? THANKS RENEE