I would at least get blood tests.

I had a horrible bout this summer. I got the halter monitor but it was useless because apparently we all have like 250 palpitations per day if we feel them or not so, if you have 249 they will declare you normal. They declared me normal. But it wasn't normal for me.

Also I was frustrated that I kept reading things on line like "water helps because it reduces your heart rate."

Water helped for me but NOT because of heart rate. My heart rate was low to normal. No more than 64 at rest.

This is how I solved my problem.
* I noticed it was worse when I had coffee, but that made no sense because I had coffee successfully all my life. The common explanation was the coffee increased your heart rate but that wasn't the case with me. My heart rate was low.
* I read a doctor on line say that "caffeine" increases the "force" of muscle contractions... including heart muscle.
* I realized that the "force" of my heart muscle contractions must have been naturally being pushed by something... thus when I had caffeine it was doubling the effect. Causing PVCs (or premature ventricular contractions)
* I looked for something natural that could caused that.
* I found calcium in the blood stream.
* I checked my recent blood tests, my calcium level was NORMAL.. but the highest I had ever had it. Normal range is 8.9 to 10. Mine was 9.9. It had never been above 9.3 in my entire life.
* I realized I had been eating a lot more calcium than usual via dieting and eating spinach, ice cream and milk in cereal.
* I reduced calcium, my result went down, they went away.

I discovered later on that being dehydrated increases the concentration of calcium in your blood stream so drinking water reduces that concentration and also the "power" of contractions.