Since you did work recently, it might make your SSDI approval a bit more difficult.
It might qualify as a "Unsuccessful Work Attempt". This link will explain:
http://www.disabilitysecrets.com/res...rk-attempt.htm
Most attorneys will not represent you until you've accumulated some potential back pay (if you listed your Alleged Onset Date going back a few years, you might have 7 or 8 months potentially already...) but a non-attorney SSDI rep might be willing to work with you right away. Allsup generally has a good reputation, but you might want to see if you can find someone locally--often former SS employees make good representatives.
http://www.allsup.com/