How sick did you feel the first few days on MC?

I am just starting my first ever fast with juices but I tried the Master-Cleanse 3 times and only made it through 1 day each time feeling SO sick, woozy, worn down and miserable that I quit. The question is, I am ready to try again once I complete my first juice fast (day 3 already!) is it normal to feel so sick on MC? I feel pretty icky and tired on juices but is all this normal? Thanks all! :-)
Red