Interesting quandary you're in, there. 
My first impression would be to avoid any sort of deus ex machina resolution for this, simply because there are so many instances where people RP characters that have had these sorts of singular experiences and they do it extremely badly. I'm not saying that you would RP this badly, but I am suggesting that you don't want to put yourself in a position where other folks look at you and think "ahhhh, another 'the Gods cursed me' snowflake".
History is replete with women dressing as men for various reasons (check out James Tiptree for a relatively recent example), and they always end up interesting stories. My suggestion would be to pull a "George Sand" and use it as a hook for RP.
My first impression would be to avoid any sort of deus ex machina resolution for this, simply because there are so many instances where people RP characters that have had these sorts of singular experiences and they do it extremely badly. I'm not saying that you would RP this badly, but I am suggesting that you don't want to put yourself in a position where other folks look at you and think "ahhhh, another 'the Gods cursed me' snowflake".
History is replete with women dressing as men for various reasons (check out James Tiptree for a relatively recent example), and they always end up interesting stories. My suggestion would be to pull a "George Sand" and use it as a hook for RP.
