Thank you everyone for your responses!
It is good to know that I'm not the only one! It sounds like some people know right away and some dont.
I knew I wished I had been born a girl, then I suppressed it and didn't think about it until I was over 30. There were other little signs that things were off which I attributed to personality differences, like how I would always sit corsslegged like a girl as a kid, and had to retrain myself so as not to stand out.
The vast majority of stories I see in the media about trans people are individuals who knew as soon as they could talk, cross dressed before middle school, and came out to their parents as soon as they knew the words to do so. That kinda made it feel like i was just weird or crazy. Thanks so much for the validation!
I had "random depression" my whole life mostly around social situations and especially when I would talk to cis-girls. The more I dig in, the more that feels like it could be related to all of this, since exploring this box I haven't felt this feelings hardly at all! So... there's that. Has anyone had that experience?