Its not really a problem. Your problem is that you're trying to pigeon hole yourself. I've done the same journey and ended up back as dominant. But I've done it all. When I had my first subby thoughts I just went for it. If I hadn't I'd probably still be thinking about it. Just go for it. Be glad you have these feelings. I'm sure it's a lot better than being frigid and boring. Or as I heard someone say a long time ago. "If it makes your dick hard, fuck it". ...now when I come to think of it... it may actually be my own quote.

Go and explore. But stay away from the AIDS...