Currently experiencing several symptoms that has been consistant for going on 4 days now....Shortness of breath and severe tightness spanning around chest, sides & back. Now on the 4th day the pain has spanned lower below chest bone. No other symptoms, no cough,etc. Ive tried inhalors, pain relievers, gas relief but nothing has helped or eased it. Even short slow paced walks or simply laying down are scary. Its like my chest refuses to expand and allow even a short breath in - so scary its like instant panic mode! I have to sit straight up and chin up for a few seconds. The strangest part is if I wear snug pants the tightness & pain in my chest intensifies. The ER eliminated any Heart complication, lungs sounded good. They gave me no explanation. They perscribed an inhaler and sent me on my way.