Should i be concerned about chest and heart pains after smoking hookah/shisha pen?

See your doctor: most people may know whether pain is in their chest, but they CAN'T know whether it comes from the heart, the lungs, the esophagus or many other possible origins. A doctor needs to take your full history, examine you and potentially have other tests (X-rays, ECG, blood tests) to pin it down. Your body is giving you a message about nicotine use- perhaps you should listen to it and quit now.