Julie, I don't think I damaged my health or anything by doing Master-Cleanse again so soon. In my case, it was the emotional detox that got to me. I wonder if it would have been better to rest a little more. However, now that's its over, I don't regret doing almost back to back MCs. If you feel motivated and ready to go again, go for it. Give yourself time to prepare for a fabulous trip.
Good luck on the liver flush, my next one is a week from this Friday.