The Empathetic Aspie Answered
I have personally experienced how a very young (8 year old) child with Asperger's showed quick and unthinking empathy for me when I
#1: dropped the tiny screws onto the floor,
#2: nearly tripped over a stool, called myself doplic and she responded immediately: no you're not !
& #3: when I stood up and my soft head came in contact with a COMPLETELY immovable table top.
It was my first clue when several outside the syndrome showed me they had no idea WHAT we feel or how we express ourselves, that we are indeed FULL of emotion and concern - we just don't always "read" others well - the face that is.
Also, I have this Blog as a reference to back up my observation: Asperger Empathy
ADDENDUM: there are two specific reasons for the blood to be tested in this area: #1: genetically, but the main reason is of course to #2: eliminate all other possible causes for the symptoms.