Do you ever doubt your atheism?

[Mudhammam]

Rephrase the question? Are you putting the feelers out for an idea that "god" is a TOE? I could certainly say that this seems to be what many were searching for when they started imagining gods, if that's the question. There's never a point at which I'd call a theory a god, or God, personally.

I'm not exactly sure what you mean by "putting the feelers out" but no, I'm not suggesting God as a theory in any sense but as a title that properly encompasses the infinitely incomprehensible that our philosophy and sciences seem directed towards as the source of everything (I don't think that can be captured by a scientific theory, btw), this substance or whatever you may have it being: unconditioned, necessary, free, and in some way separate from the physical, spacetime Universe.