I'm starting my 3rd. day. My 1rst. day wasn't easy, I started with slight headache that progressively increased through the day, by 5:00pm my head felt like it was going to explode; but i think it was because I was used to a huge cup of strong black coffee first thin in the morning; also I had nausea and couldn't hold it, I only drank four lemonades and two capsules of cayenne that day couldn't do the tea at night. Anyway despite the headahce I was able to fall asleep and slept all throug the night, next day I woke up w/o headahce.
I think my horrrible headhache was due to caffeine withdraw which I knew was going to happen. It gets better the next day believe me, some people don't feel any disconfort, but just in case I would advice you to stay home and relax the 1rst day.
you can do it, just be strong that 1st. day!!!
Keep me posted