Red tomoato skins are what liver flukes often look like, often rolled up. They can look various ways, though.
The main thing is that you are killing stuff. It's nice to know what is this & that, but not necessarily essential.
Please consider electrification also, namely a zapper (there is a forum on CZ for that), or Rife if you are not on meds.
As far as lab tests, regardless of what they tell you, they usually are only checking for what is in the stool. Many parasites hide out in other organs, and many are microscopic and in the blood or really anywhere in the body.