My doctor ordered me off caffeine in September of 2002. This was a very tough transition marked by splitting headaches, low energy, and all the things you'd expect. Overall it has been a great help though. It's great that in the 21st century in the San Francisco Bay Area, a switch to decaf doesn't mean a taste sacrifice!
Nearly a year and a half later, my body responds very differently when I do consume caffeine. I have to be very circumspect about it on those rare occasions. I forgot about that this morning and added about a third of a cup of regular coffee to my decaf at the cafe I habitually go to on Sunday mornings, and now my hands won't stop shaking! It's really dramatic. On mornings when I don't get enough sleep, I'm tempted to add a little regular coffee to the decaf and along with the alertness, I often get anxiety and other side effects.
Celeste commented a little while ago, in a voice tinged with suspicion, that I was "so clean-living". I assured her it was only because the doctor read me the riot act, and that I used to be as wired as everybody else.
Last night the Lads and I met for rehearsal at Jim's place on the Stanford campus. Jim offered me a bottle of water, and when I opened it I found it was carbonated. I have never been able to drink carbonated beverages, because they always hurt my throat. I have tried them from time to time throughout my life and it's always been that way. Jim didn't know this of course because it's never come up.
When Grant arrived I offered him the bottle of water. He was surprised to hear of my beverage deficiency. I told him it was very sad and it isolated me from my peers. He said I could form a support group for non-carbos, but that I would probably get a bunch of Atkins diet folks.