Have you tried the Blessed Herbs colon cleanse? I am gearing up to do it myself because over the years I have read so many posts about how people have had breakthroughs in their health after this particular cleanse. The key I have read is to do it while fasting. I have read too many times about that pregnacy looking bloat being related to mucoid plaque and how it went away after such a cleanse.
Does the beige stringy stuff look like old dried up mucus? I have a lot of mucus and sometimes see stringy stuff that looks like chicken tendons or beige rubber bands. And I can see this while not cleansing and these rubber bands are more moist and less tough looking.
I think a series of colonics might also help.