I've never done a professional colonic (live to far in the country for that one). And the first 7 Liver Flushes I didn't even do coffee enemas. I have done enemas after the flush for the last 4 flushes - and I think they helped me remove some of the toxins that made me so tired before.
Each flush is different - and everyone's body is different. So it's hard to say what you should do. I use Epsom Salts for my flushes - don't know how the reaction is with magnesium sulfate.
It's common to be sore after a flush, and feel tired for a day.
And don't be put off by someone's negative responses to liver flushes. Most of the time they just don't know anything about it - just taking a negative view without giving it a chance. There is lots of good info on this forum to read thru.
It has helped me and others on here.