That beginning was extremely misleading, jajaj. Anyways, good job. I got all the endings. I wouldn't take shapnova's comment very seriously, she's clearly an asshat.
I'd like to say that some medal names are not clear enough to connect them with a specific ending. Perhaps it would be nice to have the medal notification pop up in the game. It's much clearer and weirdly rewarding that way.
Oh, by the way, bear in mind @Rallyx idea: having something happen in the hospital after you get all the endings would be nice. If not, the game feels kind of incomplete.