Are you passing the same type of thing as Jeanna? I was thinking those black egg things might have come from her liver flush, did you do a Liver Flush too? Maybe that CoQ10 gets these particular critters that make it through the cleanse?
70% of parasites cant be seen with the naked eye, but they sure can do damage. Also, if your digestion is really good, or maybe your bowels are slow, you might be digesting and reabsorbing before they can be booted out - hence the headaches? I would rest assured, you're killing something so whatever is in there is being killed off, wether big or small.