The worst kind of time-traveler

All week long I've thought it is a day later than it actually is. Sunday felt like a Monday, Monday like a Tuesday, and so on. You sort of expect this kind of thing to wear off pretty quickly, but no, here it is a Wednesday and I woke up thinking it was a Thursday. What if it doesn't wear off? What if I spend the rest of my life with my internal calendar misaligned? Always living the next day instead of the day I'm currently in, always missing out on the day everyone else is living.