I agree with moreless about High Blood Pressure. I am a victim of this phenomenon as well.
I also had my heart rate slowly climbing upward. Over a few months, 5 or so, my pulse began rising, 85,90,95 then finally at 100 beats a minute. That’s too fast for sitting on a sofa!
I have had a heart attack in Jan of 09 caused by bi-lateral pneumonia that spread to my heart. In ICU, I discovered I also had extremely High Blood Pressure, Congested Heart Failure and Severe Cardiomyopathy with a Ejection Fracture of 20%.
Just like Moreless stated, my heart could not relax. It was locking up ...
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