Oh sweetie, I know you have the best of intentions but at some point you have to make a paradigm shift about doctors being all-knowing. I mean look around you, the doctors aren't doing that great of a job. It's the 21st century, we have all of this great knowledge and technology and people are sicker than ever. How often to you hear about people have depression, acid reflux, aches and pains, acne. This is not normal or healthy. WHAT THE DOCTORS ARE PRESCRIBING ISN'T WORKING!
So, it's okay to be open-minded about other alternatives. If you are nervous about the safety of some of the protocol, then I would suggest starting out small, maybe with the water cure or by improving your diet. Even small changes like that will make a world of difference. Then if you feel like it you can move on to the cleanses.
Good luck to you!