john999: thank you for taking the time to reply.
I wasn't diagnosed with PTSD until Jan 2011; 40 years after my 3 years of Military service.
I interpret #17 to be about the last 5 employed years- in may case 1987-1992; (different than the last 5 calendar years of 2007-2012)?
I didn't know it was PTSD that caused my problems; (because I was unfamiliar that PTSD does not mean to have to have served in combat).
Now I understand why I couldn't handle the stress, anxiety, fears etc that prevented me from even applying for a job or working.