I've read some the postings & the HP101 postings by RLR...very interesting.  I've had palpitations now for about 10 months now on a daily basis about.  For the most part, they are now just an annoyance now but are more of a pain when I'm dealing with 'normal' life stress (or even playing online chess/eating chocolate can start them).  They were worse early on but I've done a few things to decrease the severity, namely cutting out caffeine entirely, exercising a couple times a week (about 30min/each time) with a little cardio, gettings about 7-hrs sleep per night, and decreased my alcohol consumption.  Yes perhaps my Vagus nerve gets easily irritated now but I would like to go back to normal somehow.  

A little history on me as I believe a traumatic experience is what triggered my palpitations...I'm in my mid 30s, male, slender-build, no diseases or major medical issues, perhaps except for asthma which rarely acts up.  A couple summers ago I had a scary heat-exhaustion issue in which i was mowing a lawn in +100 degree heat quickly (as I was busy that day) just before I had a big iced caffeine drink.  Not fun, initially I was light-headed, heavy palpitations, a high resting heartbeat (100-110), higher than normal bp (140/80s and my norm is 120s/70s, no appetite for 1-2 days, and weak (I lost a little weight also).  Eventually after about 4-5 days I felt normal again (with respect to puls, bp, and appetite)...just learned that caffeine and heat doen't mix.  I didn't see any doctor at this point.

After about a month, I was mowing a lawn in 90 degree weather and decided to get a big iced-caffine drink afterwards when running some errands and I felt some of the same symptoms as before, although not as severe as the first time.  

Needless to say, I stayed away from caffeine from then until the following early spring...everything was good so I started it up again (I would only consume about 3-iced caffeine beverages per week anyhow).  Then in late spring of last year, I was running some errands and grabbed an iced caffeine drink, went to the park with my little one at noon (it was about in the 80s), had a small glass of wine for lunch afterwards (which was unusual by was offered since at my inlaws place), then went to the gym (which was my first time in 6 months).  I left the gym earlier since I felt the same symptoms as before with the same (if not worse) severity as the first time.  Needless to say that I've stopped drinking caffeine from this point on and no more mid-day glasses of wine.

I saw my doctor that week, and over the course of a weeks we did some blood tests, urine test, ekg, but everything looked fine (no anemia, no diabetes, no valley fever, etc.).  I saw a cardiologist a month later since I still had palpitations that were bothering me, after doing a echo and wearing a heart monitor for about 2 days, my heart checked out to be excellent.  

My doctor back then mentioned that it could be anxiety and stress related.  Perhaps, considering that I have two little kids (now 3yr old & 14-month old) and I wasn't getting a lot of sleep.  But generally speaking, I've never had issues with anxiety before and I've dealt with stress just fine in the past.

I haven't seen any doctor about this since after my cardiologist appt last summer, nor have I seen a psychologist/psychologost about this, I'm not taking any medications or supplements of any kind, nor do I want to.  After seeing the cardiologist, that's when I started working out and generally feeling better.

My main question is if or how I can go back to normal (palpitation-free life).  How can I reset my vagus nerve so It's not sensitive anymore.  Perhaps just time?  I know the acholol stimulates it and I can't have more than 1-2 drinks during a party/event.  I had 3-4 drinks at a xmas party recently and this brought on strong palpitations.

Any feedback is much welcomed.