That sounds very similar to my case, Pinkjay91, other than that I always felt male. I tried to "be a girl" from menarche onwards, but couldn't really cut it, and returned to boyhood earlier this year. I'm not confirmed intersex, but I brought it up with a doctor earlier this week and she was almost certain that I was. The current suspicion is that I was born ambiguous and assigned female at birth because I had some form of uterus, but that my "female side" doesn't work properly. I am in fact rather relieved to be intersex, rather than trans male as I'd thought, because I could hopefully get ahead in the queue for HRT and reassignment.