Heart Pain More Condition_symptoms How Do You Know If Chest Pain Is A Heart Problem Not Something More Serious?

How do you know if chest pain is a heart problem not something more serious? - heart pain more condition_symptoms

I often have chest pain of heart and in my lower left rib cage under my heart, I had some pain in his left arm and fingers.
I am not at all worried, and only go to the doctor when something is obviously wrong with me, I am active and eat well too.
What is fever?
I am 19 years old
£ 123
5'7