Many people advise if you're very toxic to gear up for the Master-Cleanse by changing diet, say stopping all caffine Sugar intake, then going to RAW foods, then to a Juice fast, then MC. If what you had was in fact just detox (not bad lemons) then you should feel detoxing effects at each of these steps as well. You can try these over a few days or a few weeks but they may let you know what they real reason is and ease you into the detox. Also, make sure to read the book. It says if you are having less then 1 BM a day, it's suggested for you to do some other "housecleaning" before starting the cleanse (although I didn't follow that to the letter but I did not have extreme detox symptoms either). Use your intuition and good luck. Happy cleansing!