You don't have to "look sick" to get disability benefits. Hang on for a moment and I'm going to go look for another post that I made on NeuroTalk on the subject of Social Security. I'll put the link to the post in here.
Edit:
Ok, here's the link:
http://neurotalk.psychcentral.com/sh...950#post195950
Do you have particular questions rather than just asking for general advice? Your attorney should prep you before the hearing so you know what to expect. That doesn't mean that he/she will go over all the questions the attorney will ask you, but at least procedurewise there should be some sort of prep.