I've had better hearing and smelling than other people all my life. I'm starting to understand that it's not 'just me'. Part of having aspergers symptoms means our senses are heightened. This means we are more sensitive to the world we live in. For people without our symptoms, the world is adjusted to their ability to 'be in it'. We are constantly dealing with our sensitivities. (I'm generalizing based on my own (newly acquired awareness) and my own experiences. I never knew why I had better hearing and smell (my mothers perfume constantly gave me headaches - she never seemed to care) These are my sensitivities. Also I'm highly sensitive to traffic when crossing the street. I jump at vehicle noises and can never figure out why drivers don't slow down quietly. I now realize that they don't share the same sensitivities. They have no awareness of this. I alwsys thought they were being insensitive and knowing it. No! They have no idea! I cover my ears when a siren goes past. Noise hurts!