what did i do wrong?

Yesterday I began the first day of the master cleanse. I was so excited! I felt fine in the morning, but as the day continued, I developed a terrible headache and I vomited 3 times. I know the headache is normal, but I didn't think I was supposed to be throwing up. I decided not to continue because I work and I cannot be sick for 2 or 3 days in a row. I was wondering if anyone has advice on how to better prepare so that I can successfully do a cleanse in the future. I eat healthy foods and exercise daily, but I am now concerned that my body is toxic.
Thanks for the help!! Tweet