I have no idea how much you have done. But will give you my 2 cents just cause I have been sick for 12 years. But I am coming along.
Digestion... last two years... sucky. Constipation... bad. SO i STILL NEED SOME HELP. bUT Julia Chang said I had a bad spleen. when I listened to her adavice and ate only cooked warm food and drink and eliminated caffeine, citrus tomatoes and bananas... all my digestive problems left. I do not belch any more... I can eat even meat... fancy that... I thought I was not digesting meat. No ... I was not digesting anything raw and I ate salads constantly!!! I drank iced tea ... i live in the south. HORRID.
So eat only cooked veggies and cook your apples and what ever fruit you can think to saute and see what happens. Stay off the meats until your body says... maybe if you are not eating them now. It's worth a shot. In a week you will know. I can eat some fruits cool not cold but nothing puts my guts into gas like raw veggies.
This is the biggest boon to my health lately and solves many problems. Everyone gets crazy about raw food. If you want those vitamins... get a juicer cause if this works you won;t care.
Julia says we don't have enough chi or warmth in our bodies to digest raw and break down the cellulose and so we get nothing out of them and so why eat them.They have to be warm for us to break them down. One of her patients went back to raw after two years and got the belching back in about 4 weeks so she says it might be indefinitely.
Other then that...go to http://www.road-to-health.com and read about saunas. I may get a FIR (Far-Infrared-Sauna) (far infra red) sauna since one is 1200 dollars and that is cheap compared to what I have spent for 12 years on things that have not worked. I know for sure it sweats out metals. so it must sweat out toxins. You may not need to liver cleanse.
I am hoping there is some info on curezone about this but I just found it last week and have not checked it out.