My doctor is concerned with my elevated heart rate based on my record
keeping and has ordered some tests for cariac markers.

My resting heart rate is good for my age: 60-61  BPM. This is the heart
reat you get upon waking, and before you get out of bed.

However, this rate climbs during the day to the point where just sitting
around, I've got rates around 111 BPM. Much of the time the rate is in
the mid 90's during the afternoon.

In the evening, the rate lowers below 90 into the mid 70's.

I'm also having low blood pressures due to taking perhaps too much
Lisinopril, an ACE inhibitor. I often get pressures of 105/66 and in
that area

When I lost 45 pounds, I cut  back on Lisinopril from 10 mg 3 times a
day to 5 mg. twice a day. I had reasonably good pressures, 120/78 range,
until I would go into the doctor's office and get a 160/95. I have white
coat syndrome. So I returned to the previous larger dose of 10 mg. 3
times a day and began noticing this elevated heart rate.

I also take Niaspan. Both Lisinopril and Niaspan have elevated heart
rates as possible side effects.

I exercise daily. Ride my bike and walk. Walkiing 40 miles a week is
typical for me. On my bike I'll average 50 miles a week. I recently
began swimming. At my last swim session, I covered .48 miles with short
rests between 26 meter laps.

Since my last office visit, less than a week ago, I reduced my
Lisinopril by half and cut out the Niacin. Slowly, my afternoon heart
rate has improved a bit--with rates below 90.

Anybody taking these drugs and monitoring their heart rates?
The cardiac marker tests haven't come in yet so I don't have an
indicator on heart health.