Anybody else get a dull throbby pain over their heart upon being startled/flustered?

[Mister Obvious]

I've noticed this a few times in the past week...

I'll get startled for one reason or another (I startle easy)...

Or flustered for one reason or another...

Anything that sort of suddenly/sharply increases heart rate...

Then I'll get this sort of dull throbby pain that radiates throughout the breast/chest area over my heart for a few minutes until my heart rate goes down.