From last few months I feel pinching feeling in chest and back side few times in a day. With that head become heavy this all happens particularly after eating lunch or dinner. When I wake up from sleep then all are normal. Bcz of that i tested ecg and complete blood report including cholesterol . Sugar, blood count, LFT, Kft but all, reports are normal. Measured bp 3 times a day it came around 120-125/70-72. So why I feel this kind of symtoms?