It's not often, but sometimes my heart feels heavy.

I enjoy exercising.

I don't overexert myself with exercise, but I do basic strength training, walking, and running.

But sometimes I exercise, and occasionally my heart hurts.

It's not to the point of significantly interfering with exercise, but I sometimes feel a bit uncomfortable, like a tightness in my chest.

At this time, taking about a 10-minute break makes it okay again.

Sometimes I experience these symptoms, so I feel a bit anxious.

Are there people like this..?