Double Eyelids

A few months ago, a friend suddenly discovered I have double eyelids. Asking my Mum, she confirmed I used to have single eyelids. How bizarre. "Shit" doesn't just happen in life- "Strange" happens. Just when you might think mine was a freak case, this friend also had double eyelids sudddenly, a few years back. Strange karma. Karma can work strangely. I winder what causes did we create to experience these effects.