Read the sticky in the SSD forum about "Don't start your claim unprepared."

This is the SS ruling on RSD:
http://www.crpsadvisory.com/crpsa_ss...l#.UCdNM3t5mc0

RSD is not a disorder that automatically qualifies claimants for SSD benefits. But, it is possible to successfully prove you qualify if you understand the process which is VERY complex.

Also consider using a non attorney SSDI representative (they are often former SS employees) since they often do more hands on work and will often do more earlier in the process.

Buy or borrow a copy of a NOLO guide to SSD at your local library.