I couldn't outrun the fear

Thirty-four, thirty-five, thirty-six strokes per minute... it wasn't working. The rowing machine remained implacable and emotionless. I couldn't outrow the fear.

The doctor was having none of it.
"You're heart is beating too fast."
Confirmed shortly thereafter by the triage nurse at the hospital where I was sent.
Too much uncertainty? Too much news? Or my husband's 1st April biopsy for prostate