You are correct in your observation in that what you are seeing is NOT candida, and its not intestinal tissue.
Your symptoms are rather classic for parasites.
Sadly the medical profession over looks the obvious, they are either not adequelty trained to look for it, or dont have the tools to solve the problem.
The post below yours with the link to the Human anaerobic intestinal “rope” parasites, accurately describes what you are seeing.
Ive expelled similar "UFO"'s as you eloquently put it. Ive had massive success using an advanced herbal formulae called PWA ( parasite Worms Adult). This is an adult formulae, possibly the most advanced of its kind on earth.