aspergers is not mental retardation. my little sis has it (so the doctors say) and really, the only things that distinguished her from non-aspergers kids when she was little was that 1) she was really sensitive to loud noises and other stimuli, 2) her social skills were next to nonexistent, and 3) her motor skills weren't so great.

but if you really think you might have it, see a psychiatrist/psychologist/someone that hopefully knows what they're talking about.