Do you frequently glimpse a stranger on the train who looks just like you? Convinced a nefarious organization deployed agents to impersonate you? The truth is you’re probably suffering from the syndrome of subjective doubles. First identified by George N. Christodoulou, the condition involves false memories of familiarity in which strangers appear to share your exact appearance.

In a 1978, Christodoulou described the case of a woman dubbed “Ms. A” The reserved 18-year-old believed that a female neighbor had gradually metamorphosed into her doppelgänger through the use of special makeup, a wig and a mask.

It’s a new year and a new decade, so instead of focusing on those same old boring resolutions, let’s tackle the big one. It’s time to do something about that mysterious double in your life.

Perhaps it’s your own doppelgänger — you know, the guy or gal that looks JUST like you. Or is it other people’s impossible twins you keep encountering?

Together, you and I are going to crack this nut. Let’s start with the unsettling feeling that someone (or something) has replaced a loved one, friend or coworker in your life.