great you did 21 days, focus on that. I admit after I did 3, 40 day juice fasts and got great benefits from each fast, that all of a sudden I went on a week long junk food binge, I ate double cheeseburgers with fries, ice cream sundaes etc and by the end of that week, wow, I felt fat and...... bloated!!!!!
I realized after 1 week of binge that junk food was not right for me and I immediately corrected my course and went back on a good diet, lots of fruit, good juices, small amount of salted fish, onions, garlic, pickles, pumpkin seed shakes, all good foods that parasites do not like.
I think a binge after fasting is sometime a common reaction, one faster broke his month long fast with a bucketfull of fried chicken!!!!!
Do not focus on the binge, focus on the 21 day success, the cleaning out of your system and the self discipline you learned. In the future we can all avoid bingeing by just being aware and planning ahead.
Good Luck to you.