Man, when I was a kid I tried my parents' coffee - Folgers™, Maxwell House™, or something like that...
Same reaction as when I tried beer ... "What the HECK are you people THINKING?!?!??!!!"
Then I tried "Allegro" coffee - one of those pricier, 'designer' coffees - and they roast it up only a couple miles from my house... Mmmmmmm, boy! Does the neighborhood EVER smell good on those days!!!
So, I drank their coffee for 3 years - after having avoided coffee throughout my ENTIRE adult life... 'Cause theirs tastes DELICIOUS!!!!
I liked it, my body didn't. My body won the argument... I was having the same symptoms you've described, especially when I used a "french press". Switching to a paper-filter arrangement helped - it screens out quite a bit of the oils of the bean, which were responsible for speeding up the heart-rate... Helped a lot, but then my body reacted in a DIFFERENT way, that made quitting inevitable...
Boy, I sure miss that delicious coffee...
Zid
Psssst! @Shamus!!! Hey, Monkey!!! How about "quite savory", instead of "savourous" - or whatever the heck that word was that you used...