Thanks for sharing this. I'm also caffeine sensitive and unwittingly built up a tolerance as a teenager.

I realized the degree of my caffiene sensitivity when I had to give it up. Just quitting my one cup of coffee a day was rough. (The headaches!)

Now that I should be able to consume caffiene again, I can scarcely look at black tea without my heart racing. I really miss good coffee and it's effects, so I'm thinking about doing just this myself.

It's hard to start however, now that I know that I'm basically cultivating an addiction.

I don't see the problem. You can taper off easily in less than a week - every day, drink half of what you had yesterday, for example.

You're right. What what bothers me most is not the stopping — it's the maintenance required.