Hi
I'm also almost two years out from my last dose. For me, the wave/window analogy is too confusing. It makes it seem like we will always be going back and forth between the two, which makes me suspect that the good times are always going to be followed by something worse. That has been problematic for my mental state. I don't think it is a bad analogy for the people who it works for. I think it's a good thing, then.
I just sort of see a lessening of symptom severity as evidence that it IS possible to feel and function better-- the body has what it needs to get it together. If it's possible, then it's highly likely it is repeatable. If it's repeatable, then it's probably a state that can expand until it's more the norm.
When we have a time of feeling less beset by symptoms, I try to remind myself to just accept it as good and to not analyse it in hopes of discovering what it means in terms of healing. I have to practice accepting that healing IS happening, whether I feel bad or good, either way.
I have been having a really rough time of it lately, and I wish that we could all just feel better instead of struggling. I wish we didn't need this forum, but I'm glad we have it.