During one of my worst periods a few years ago, I had an awful feeling going through my body that I can't describe. I happen to see a different doctor who took my pulse (none of the others did). My heart was rate was well over 100. I wondered back then in that was a cause or effect of the body feeling. Recently I bought a fingertip pulse oximeter. It is supposedly professional grade. During the first days of testing I unscientifically guesstimated that my resting rate is in the eighties. Last evening I was not feeling well. I got into bed and was there for an hour. I had that awful body feeling, but not quite as bad as when I went to the doctor that time. I took my pulse and it was in the nineties. I remained lying down for 30 more minutes, took it again. Still in the nineties. And over the next hour, every time I checked, it was in the nineties. Now, today I am writing this, and just feeling my usual level of sick. My pulse is back in its eighties. I guess my first question is if any of you has an awful body feeling that you find associated with a faster heart beat? And how would you describe that feeling? Does it have a name? And my second reason for posting this is more general, and is to see if any of you have any symptoms you find related to pulse.