Recurring chest pains (normal? ) Vague?

How long does it last? what causes it? Is it related to exercise or rest? Is it related to certain positions? how frequently does it happen? any smoking, drugs, or family history of heart disease? could you describe the pain? Is it sharp? Dull? Pressure-like? how much are you able to exercise? is it just one spot or kind of vague? I have been having recurring chest pains They last for few seconds Happens at any moment usually while lying down Recurring(it happens for few secs goes away but keeps happening few times every minute like a cluster) No smoking or drugs or family history but i do have a history of anxiety disorder and POTS The pain feels dull/sharp/shooting happens too often stays for few seconds(sometimes a flash or 5 secs)and its gone. Sometimes it happens in the back feels like spreads to different parts like an electric shock but painful one One spot(usually the left side of left nipple) Yesterday's Ecg attached Echo in jan 2021 and tmt in june 2021 normal