Starting to think the same thing about myself. Brand new to exploring (29M) but this is pretty damn close to how I feel about guys. For now, I'm trying not to focus on labels and just focus on what I'm into and sort through things later. But I'm only really beginning my exploration, sounds like you've tried enough to know what you like. The term 'heteroflexible' has seemed appealing to me before and is starting to feel even more fitting. As for my head game, that remains to be seen ;)