I had no clue that I might be trans until I was 54. At first I thought it was a crack-up, response to getting fired, etc. Did some therapy, wrote a couple of books worth of stuff about myself on this site (sorry for all who had to read it), then decided to "be a man" and treat it as a delusion; moved across the country with intolerant of trans wife and kid. Six years later, I know it's never going to leave me alone. I'm back in therapy about it, back reading about it, thinking of hormones, etc. All that. Lots of stories are out there about late transitions, but late self-awareness that it's there at all: anyone else like me?
Perhaps I have a joint Ph.D. in obliviousness and repression, but if I have any company, would love to chat...