To answer your question, yes you do need more water. You need to drink at least half your body weight in oz. Like if I weighed 120. I would need to drink 60 oz. I always drink more than what is required though. Are you doing the laxative tea at night?
It is the morning of the second day. I just drank my SWF. I always feel my best and most confident about the cleanse in the mornings. I don't know why. And I usually don't have an appetite in the mornings during the cleanse.