welcome to H C M
The sore and burning feeling in the center of your chest after 24 hours of exercise on treadmill is not likely a common feature. Cardiac causes needs to be ruled out. Checking the cardiac status will be helpful. as its appearance is very late,it may be simple muscular pain
as you get tired due to treadmill.you also do not have symptoms like -sweating or breathlessness,so have anti -inflammatory,analgesics tablets,see cardiologist ,get e c g done--relax.
dr s k gupta