I have no family on the face of the planet with whom I can share my diagnosis, but I do have a few friends. Just a few days ago I disclosed it to which he said, “Hmm, that’s interesting.” I’ve heard that before. It’s as though the hearer doesn’t know what to say, like telling someone you have cancer, etc. I followed up our talk with an e-mail and a number of attachments explaining what it is, how it affects me, and what friends and family can do to help and relate to one with Asperger’s. I’ve not heard back, though he did say he would look over the info. I’m sure he will since he’s an avid reader and curious about everything.
So, educating your family about it may be the best thing. If they can’t accept it, then it’s their loss. If they’re truly concerned about you, they’ll try to understand.