<s>[INST] i am 34 yr old male i exercise regularily  i m 6ft tall and weigh 95 kgs  i am a regular tennis player for last one year or so i am having frequent chest discomfort no pain . i got my tmt and echo done 3 times in last one year both are absolutely fine with my tmt results going better than 100% whay is this frequent chest discomfort [/INST] Thanks for your question on Chat Doctor. I can understand your concern. No need to worry about heart diseases as your 2d echo and TMT (trade mill test) are normal. In my opinion, you are mostly having musculoskeletal cause for your chest discomfort. Your chest discomfort is associated with exertion (playing tennis), so musculoskeletal cause is more likely. So follow these steps for better symptomatic relief in musculoskeletal discomfort. 1. Avoid awkward movements. 2. Sit with proper back and chest support. 3. Apply warm water pad on affected areas of chest. 4. Avoid heavyweight lifting and strenuous exercise. 5. Avoid bad postures in sleep. Don't worry, you will be alright with all these. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. </s>