I’m not questioning that Froome actually contracted schisto. To make that up from whole cloth, he would need to have several doctors in on the lie, and I don’t buy that. Where he quite apparently embellished the story is in the details, and particularly in creating a story that both the disease, and its treatment, severely impacted his performance. This has all the earmarks of a relatively minor episode in his life until, having suddenly become the greatest GT rider in the world, he saw that it made a convenient explanation for his transformation.
Notice that in the quote that fmk posted upthread, which started this renewed discussion of Froome and schisto, Froome actually gave three reasons for his transformation. In addition to schisto, he mentioned 1) the weight loss, and 2) having to stay close to Wiggins, rather than getting in breaks. IOW, it was not a situation when he intentionally did some things in advance that he thought would make him better as much as one when having suddenly greatly improved, he started looking for reasons post facto that he could make public, that allowed him to sidestep doping questions. Those three reasons are not lies, they’re all things that quite apparently happened. But it doesn’t necessarily follow that any or all of them really do much heavy lifting in explaining the transformation.
Brownbobby might be partly correct. Maybe his inconsistencies in the schisto story are partly the result of a poor memory. But the reason his recall would be poor is just because the disease was not a big deal at the time. As others have noted, if this was a really serious matter, he was constantly or periodically feeling ill, of course he would remember exactly when and how he was diagnosed, and other details.
Why was he tested in the first place? Maybe it was a combination of feeling a little sick at the time and passport abnormalities, even if the latter were not enough to trigger a WADA investigation. But it could be something much more mundane. Maybe he always remembered swimming somewhere he could have become infected—wouldn’t anyone from that part of the world be aware of the possibility?--but since he had never had any symptoms, he hadn’t worried about it. But now, as a rider who was frequently being subjected to checkups and who wanted to be on top of his physical condition at all times, he decided he might as well get tested to make sure, even if he wasn’t feeling ill at all (much as someone who is at low but non-zero risk for HIV might not bother to get tested until s/he is entering a sexual relationship with an innocent partner).
Following diagnosis, he took PZQ, like millions of others, but despite what he and Cound said, it’s very unlikely that the immediate effects of the drug prevented him from training for several weeks. That sounds very much like BS, but I’ll give them the benefit of the doubt and say they weren’t lying, they just didn’t remember very clearly. Maybe minor symptoms over 2-3 days became more severe conditions over 2-3 weeks.
After one treatment, he would have a checkup six months or so later. If there were still some eggs present, he might have another treatment. More than two treatments is very unusual, and as I said before, one of his own doctors remarked on that. So why the further treatments? Without knowing more details, it’s hard to say. Maybe his body was having trouble clearing the eggs, but maybe also by that time, which was post-Vuelta, he exaggerated his case to his doctor so that he could get further treatments he really didn’t need, but which would help the story. But again, there's a simple explanation that doesn't ascribe nefarious intentions to Froome. Maybe he just wanted to be absolutely certain his health was as good as possible, so he wanted the treatments even though he wasn’t feeling sick at that time at all, and probably didn’t need them. If you’re a world class rider, and had these worms at one time, even if the evidence suggests very strongly they’re gone, you might have additional treatments just because there’s no real downside. But having gone through them, he could then point to them as evidence that it took him several years to shake the disease, when in fact it most likely did not.