Welcome to HCM
You are having chest pain
but charecter is not like cardiac pain ,it is good you checked with EKG and X ray chest,these are atypical chest pain and may have various causes like acid peptic disorder,muscular or nerve pain
All such pain are to be suspected and treated accordingly and many times only anxiety
and stress can cause pain.
In case you worry a lot get a Echocardiography
and Stess Test if they are normal you can be almost sure that there is no sinificant heart disease
Your weight is 224 pound for 5'11'' is over weight/Obese.
Kindly take care of weight and diet and regular exercise programme.
Hope this information helps you.