Welcome to HCM
We understand your concerns
Pulsating chest pain
on and off several times a day could be due to so many reasons. But often it is due to simple stress
or gastric complaints. Also angina
or heart related chest pain should have so many other associated symptoms with it, I don't think you have those associated symptoms.
Therefore don;t worry. But you should consult a physician and get your EKG done to be on the safer side.