Hi all! I'm new, but this seems like an amazing place with some amazing people. Just a little background: I was just diagnosed with POTS in August, but doctors suspect that I've had it at least 10 years, if not my entire life. Anyway, I was wondering if any of you have experienced anything like what I've been experiencing the last week or so. I've been keeping track of my heart rate lately since I've been feeling awful. It's not doing it's normal POTSy thing (e.g steadily increasing upon standing), but instead increasing, dropping, increasing again, dropping, etc. It's not uncommon for it to drop 10-30 beats and then jump back up again. Today it dropped from 140 to 80 bpm and it felt awful! It's also gone from 130 to 45 and then up to 180, which is quite scary. Typical HR readings this week have been like this (all within a second or so span of each other): 130 to 100 to 125 to 108 to 100 to 88 and then up again, constantly changing by the second. I feel like a ping pong! Before this, my heart rate was pretty steadily high. Now it's just all over the place. It might as well be constantly running high-I'm horribly symptomatic. Have any of you had this happen? Also, I've checked this against three heart monitors, so no technical problems and I've also checked against healthy family members, whose heart rates will register as steady and fluctuating by about a beat or two. So it appears to be me. I'm also not on any POTS medications, so that can't be it. The only thing different lately has been that I've been slowly withdrawing from Klonopin for my insomnia. I'm worried because I'm supposed to see Dr. Grubb soon for my POTS, but I don't know how he could possibly treat this as POTS anymore! Plus I feel awful. Well, thanks! Sorry if this appears incoherent!