Hi vintagewaste,
Just letting you know that it is probably mucous. Usually a yellowish-type bowel movement means there already is a mucous-like issue happening. Cut out the dairy (except for goat's cheese and yogurt, quark (organic preservative free cottage cheese) for a bit. You could have a small stomach infection, or some parasites, etc.
If you mix that with flax seed oil, about 3 tbsp and hemp oil, the same, you could have more come out. You will also feel much more energized.
If you go to Dr. Johanna Budwig's diet online, she was a biochemist, you'll see the diet there.
I just began the diet because I came back from India and as soon as I started the diet I had the same thing happening. The mucous is clearing now, 4 days in.
Good luck.