<s>[INST] Sometimes when I m on the treadmill I get a funny feeling in my chest area. At first I thought it might be my heart but then I start belching and it soon goes away. It does get bad enough sometimes that I have to stop on the treadmill until it passes. Other times I can be on the treadmill for an hour without any problem at all. What do you think may be acusing this feeling? [/INST] Hello dear , hiWelcome to Healthcaremagic.comI have evaluated your query thoroughly .*  This is in relation with psychological impact of non specific discomfort .*  Still advisable to get checked up with physician for primary assessment .Hope this will help you for sure .Regards dear take care . </s>