Maybe you cut the designer tags off the insides of your clothes because their tiny tickle drives you nuts. Maybe you stick a Post-it note over your blinking e-mail icon because the flashing distracts you. Maybe you run an air conditioner in November to drown out the sound of a car alarm that doesn't seem to bother anyone else. If this is you, take heart. You're not necessarily becoming an intolerant crank; rather, you may be suffering from a spanking-new syndrome called sensory defensive (SD) disorder.
That's the theory behind the new book Too Loud, Too Bright, Too Fast, Too Tight...