What made you stop?
I moved and my new place fried me with radiation (my phone shows I'm constantly exposed to almost 60 routers). So I couldn't handle any stimulants at all because the radiation caused intense overstimulation, rapid muscle wasting and drinking any coffee at all made me feel like I was on fire. Using progesterone, thyroid, aspirin, Vitamin E+K, mild tobacco for a year has helped me become more resistant to radiation so that I can now drink about 5 cups a day with no problem but I won't be able to handle the 15-20 cups a day like I used to until I move to a less irradiated area.