Jonathan, I voted yes, even though I do believe I once was able to mostly hold down one job for yrs., (did bounce, at times, from one job oppt. to the another) when still suffering PTSD symptoms. To begin with, that one job then was way below my skills, interest, requir./knowledge and promise; (Less pressure and room for absentee'ism) ,,, (Much illness & anxiety/fear combination).
The other jobs, well they didn't last long, bc I was simply to ill for the No to practically none absentee'ism rules. At these time I was still undiagnosed.
However, after the ending of a particular yr. what with 3+ specific trauma's that yr. in addition to previous chronic threat and trauma, well then that impact and those then severe, debilitating syptoms that followed, I was rendered completely disabled and truly unfit for employment for some yrs. to follow.
A difference may be though, that I for the life of me, could not find any help and then later proper help.........until I did find help, and then I did work again in a skilled, career and good paying job for about 1yr. at which point I discovered I had lost much vision, and was progressively losing more, was then diagnosed with an unknown condition primary to the secondary inflammation and loss of vision. Also, I was married and had given birth to a set of twins, each of whom need(ed) me.
Our then newborns, my employment stress and increasing inability to drive home did it, and I had to resign from the job. Don't much remember what role my PTSD then played, as I had been previously been given 2 1/2 yrs. of what was then received by me as a miracle and a new life.
Hope