There are some things that should be kept on a need-to-know basis this is one of them, along with:
- Financial info
- Medical info
- Personal ID info
- Personal info
You can still make exceptions if you feel it would be helpful, but other than that, these things should all be on a need-to-know basis. In the case of Autism/Asperger's spectrum disorders, instead of telling your friends you have it, you can tell them, "I wear sunglasses indoors because I am sensitive to bright lights", or "I wear hearing protectors because I am sensitive to loud noises." Just tell your friends about the trait related problems you have, instead of about the whole condition itself. Most people either don't know about spectrum disorders, or have a misinformed idea of what it is about. They are likely to change how they relate to you if you tell them you have Asperger's. That's why it's best not to "come out" to people outside of doctors, therapists, and immediate family. In some cases it may be best to not even tell your family.
Hope I've helped.
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If a man does not keep pace with his companions, perhaps it is because he hears a different drummer.
Let him step to the music which he hears, however measured, or far away.--Henry David Thoreau