Sounds similar to me. Highly recommend doing a series of liver/gallbladder flushing. Get Andreas Moritz 's book - The Amazing Liver Cleanse and follow the protocol.
I am very skinny and was doing cleansing and losing even more weight. Now after doing some lv/gb flushing, P&B shakes, a parasite/candida cleanse with Paragone and daily enemas to keep all the stuff I am dredging up moving out of the body - even after all this cleansing I am holding my weight! I'm sure it is because I am increasing my absorption with all the cleansing.
Go to Andreas forum on this site and you will find his website for ordering his book. Lv/gb flushing will definately help you. Good time to do it too since you have just finished a colon cleanse. Good luck!