>When the parasites die they release highly toxic substances that really hurt you. In my case they gave me colic and made me expel a little pebble in my pee. All really painful.
Bear in mind, whatever treatment you are taking, its effectiveness depends on the type of predominant parasite that is 'in residence'. Therefore it is quite vital to try and determine what is the main culprit that has infested your organism, because that will greatly determine your course of action to kill it off.
To clarify. We all carry numerous parasites, and each species has yet again so many stages of evolution. Many of those have a life cycle that needs intermediate hosts, >they need to travel outside the infected person - often through the feces (others use blood to travel from host to host, a good example is malaria), like some tape worms that use pigs as intermediate hosts.
But some have further evolved, and have their entire life cycle within the organism of their host. So what you call 'toxic' may well be a part of the natural lifecycle of the specific parasite.
A good example will be a highly evolved nematode that releases its eggs into the host at a regular pace, The eggs then enter into the bloodstream through the colon wall. Those eggs that reach the heart will then settle there and mutate into the next stage of their development. (The ones that reach other parts, will infect the body in those places and the material will cause other discomforts in those areas). Once the metamorphosis is complete, the offspring will migrate from the heart to the lungs, where they will then again mutate. The final stage will be for them to migrate up through the airducts, and back down into the digestive tract, settling down to become the next generation within the same host. The aim of parasites is not to kill their host, but to co-exist and are therefore very careful in how much offspring they release in their fertile stage in the guts. You can see that with this type of lyfecycle the parasite will live on untill infected blood gets into another organism or even when infected mucus from the airducts gets into another host.
To determine which type of infestation you are dealing with, a visual identification would be ideal. The problem is that is very hard. These parasites are very smart and have evolved to be quite complex entities. Once they have lived their life span and die (or if you have killed them with some type of remedy), the dead organism loses it's ability to resist digestion. Hence, the parasite is 'digested' and does not exit in any descernible form.