yes
because he has no biological parent, he fell from heaven… you see, god tried to create the perfect man…… but myungsoo, his experiment, was too weird and had too much armpit hair……. so the angels pushed him off the clouds and he fell on the land of south korea where his current parents found him
and yes it hurt when he fell from heaven, fact proven by the consequences of the fall: his heavily lopsided and cocked eyes
so god also added a bit of derp in the recipe when he was creating him…yup that explains everything