I don't know too much about heavy metal detox to tell you truth. That is going to be next on my list of research and implementation. It definitely sounds like you are moving in the right direction. Keep doing what you are doing. Listen to your body as to what works and what doesn't. Each time I stray from what I really thinks will work or is working for me, I take two steps back. Do you have pictures of the worms? If so, you should post them.
You must have been pretty sick to find and see Dr. Yu. Good luck on your journey. Sorry I don't have too much advice but I'm looking forward to seeing your progress. Now I'm off to find out what NAET is. :)