Just to add another data point - I seem to be very sensitive to caffeine, too. Any more than a small cup of coffee in the morning will lower my sleep quality.
Sometime I find myself getting strangely aggressive about things if I have, say, two small cups of coffee. It helps a lot to get me going in the morning, but I have to be very careful, and take frequent vacations. I used to be able to drink a lot of coffee, too much, but I've gotten much more sensitive as I've gotten older.
Sometime I find myself getting strangely aggressive about things if I have, say, two small cups of coffee. It helps a lot to get me going in the morning, but I have to be very careful, and take frequent vacations. I used to be able to drink a lot of coffee, too much, but I've gotten much more sensitive as I've gotten older.