-You are in town and you see a really nice friend and you hide, for no apparent reason.
-If you are running errands and take longer than expected, your family just assumes you stopped by the bookstore and lost track of time. They also know what you got to drink there, and what books you were looking at. Of course, they know which bookstore, also.
-You panic if you wake up in the morning and realize you ran out of bananas and yogurt, which you eat every single day. You stand aimlessly in the kitchen for a long time, trying to figure out what to do. You flap your arms in despair.
-People say things like, "Wow, it's kind of like an encyclopedia in there, isn't it," meaning in your head. They don't appear to to mean this as a compliment, but you are flattered anyway.
-You sit front and center in any science related class, so you won't miss a thing. You are in the absolute back of any class at the gym. The aerobics teachers occasionally tease about how uncoordinated you are.
-Step aerobics is WAY harder than chemistry. And way less fun.
-Clipping your fingernails feels overwhelming, you dread it for days before you do it. This is not because it is uncomfortable to clip them, and in fact, having long nails, even a few millimeters, makes you feel crazy. None of this makes sense to you.
-Conversely, spending hours at work trying to save the life of an unstable patient and solve complex medical riddles related to her condition is not overwhelming. It is strangely calming, it's why you stay at your job.