<s>[INST] Hi I have heavy chest - hard to breath - pain in chest area with spasms in back and chest occasionally weak and all is so much worse just trying to house chores - pain pill occasionally when severe helps but no improvement and going on 3 months - had every heart test and all are negative - any ideas? [/INST] Thanks for your question on Chat Doctor. I want to ask you few questions first.1. Are you smoker?2. What is your age? In my opinion you are having bronchitis. And bronchitis can be seen in smokers and old aged patients. As your symptoms like chest tightness, breathlessness points towards bronchitis only. Your cardiac work up is also normal. So possibility of bronchitis is more. So consult pulmonologist and get done chest x-ray and PFT (Pulmonary Function Test). PFT will also indicate severity of the disease. And treatment is based on severity of disease. </s>