Wow! I was just about to make a post about this.
I'm going through almost the exact same thing it seems. Sometimes I recognize my own face as masculine, other times it's feminine. Some days I've never felt more like myself in a t-shirt and a hoodie, and other days I just feel like a girl in guys' clothes. Some days I don't know how I'll make it through the week without cutting my hair, other days I swear that I've just caught myself admiring the girly and cute things my friends are wearing. And no matter how I interpret myself at any given moment, it is always carrying a heavy reality; that how I feel right now is probably not how things will be in a week, or tomorrow, or even in just a few hours.
I know it's a difficult thing to describe. The switches aren't concrete enough to be labeled as characteristics of bigenderism, but at the same time they seem to be following you everywhere, wrecking your self-identity just when you think you've found some clarity. They are founded by uncertainty and fear and are drowning in the pressures from who I'm expected to be, who I've always been, who I keep saying I am, and who I really am.
PhoenixAsher, I really wish the best to you and how you decide on being in the future. I know it can be frustrating and a little scary when your identity starts to seem to fade into oblivion. Hopefully time will even out our feelings.
Good luck,
Noah.