fist of all, good for you for the inclination to go the Liver Flush route!
You say you've been 'low fat'for awhile. Thatr raises a red flg for me. Are you sure you have been having enough *good fats* to keep the bile moving?
I also feel that when one doesn't want to eat, the best thing is to not eat! Maybe a few days of water only would give your body the green light to mend whatever is out of balance.
If I had that kiund of pain I'd likely be trying another liver flush... And then maybe a water fast. I have completed a 29 day water onlt fast and it impoved many things for me. On the whole, I feel better than several years ago.
one other thought:
look into Perelandra's MAP program-- it stands for "medical assistance program". There is a book that leads you through the simple, non-invasive process so it's a DIY thing. Always the best, in my view. I've used it to help me with some chronic pains...