You could have more than one type of parasite. Some will live right in your blood. Any animal that lives, will have things that live off it. And, relationships will develop between the microbes.
Think of these bugs as living chemicals. Add one thing, something else gets affected, which affects something else. It is a chain reaction.
If it is worms, I would suggest looking at albendazole as a treatment option, if the herbs do not do the job. You will need a doctors prescription---------Shroom