Like MS, it's different for everyone. I used the Blue Book words (SS's own definitions of Disabilities - can be found by googling), was refused first application (think SS does that to most to get rid of the not serious) appealed in writing without a lawyer, told them really in writing what MS is like in my appeal form.. Get @ $1300 a month, got @500/mo for kids (bought braces with back pay, then saved for college for twins) until they left High School a few months after turning 18. They recentlysent me letter to review me (DXed in 2002). I thanked them for their concern and that I still had MS. They sent me a letter that they did not need to review me. Attitude worked on my office but not everyone's I think. If you are not confident about your writing skills, try but be careful. I could afford to lose and wait in this gamble. Make copies of every thing, they told me they lost my file at one point.And all my doctors backed me up on what I said. Good luck.