I feel popping in chest when laugh hard I feel popping in the chest when laughing hard it's like something coming out from the chest but no pain involved, I have this problem since two years I did all the test such as ECG, Chest X-ray, and echocardiogram, docs told me it is nothing worry it is a just muscle problem. but still, it doesn't go away. Docs giving me anxiety tabs but it's not working. It can be a costochondrities? please do replay.