Nutness

I'm nuts. Plain like that, I am, and that’s all.
I don’t expect you to believe a word of what I am writing here (even if you are also nuts like me, which I have no reason to believe), despite the fact that I'm talking so shamelessly about myself (not at any rate my favorite subject, however much I resort to it while blogging).
In fact, I suspect my very wording here discourages belief in my nutness, but this won't make me any less nuts, though.
Then my hard-to-believe nutness.
If I want to explain it, it is highly advisable to do so understandably, otherwise in the end I won’t have explained a thing to any possible reader. I suppose I can do this, but the better I explain my own nutness, the harder to believe it naturally gets.
So, whether you believe me or not, I'm stating my nutness here. What the hell am I doing that for? This is something I don’t know myself, which makes good sense if you bear in mind that I'm really nuts.
The strangest fact about my nutness is its intriguing implausibility. Things I say do sound sound, and things I write usually sound still more so. There seems to be no way out.