Description: screenshot of Tumblr with two posts. One describes how Sherlock Holmes would figure out you're trans before you even do. The second describes how Hercule Poirot would figure out you're trans after initially suspecting you of murder and then clearing you're name. Then he gives you a kissy kiss.
I don't know the episode, but when is House not an ass? Him signing you up for a surgery that you haven't even had time to consider and consent to because he thinks he knows best is not kind. And if you do balk, he'd belittle you.
Inspector Gadget flying down the street and crashes into you, sending you both tumbling into an open-air clothes market. You emerge in a gender-bent outfit and he says "That suits you! No need to thank me!" as he flies off. Penny and Brain look on in confusion, glance down at a computer, then give you a thumbs up.
...and then when you look confused [Holmes] is like "ah... had you not arrived at that conclusion yet?" and wafts away... leaving you in a gender crisis
Of course, Holmes knew perfectly well you hadn't figured it out yet -- that was the most obvious deduction of all. He deliberately broke the news to you for his own amusement.
Inspector Clueseau figures it out because after he sees your large train collection in your room, he decides you are 3 trains in disguise, but you misheard him.
Jessica Fletcher could give you a devastating summary of all the overwhelming evidence you're trans, except she's completely aware of the prime directive—she has a magnificent grasp of gender theory, having done her research for her novel Murder in Pink, Blue, and White. So she gives you a hug and puts you in touch with her dear nonbinary nibling and says how you two would get along famously.