Like Berta says, You need to get a letter from a vocational rehabilitation counselor stating "the veteran is unable to work solely due to his service connected disability of PTSD."
You can go to one through VA or find one in the phone book and pay.
VA is really trying to screw you over by focusing on the nonservice connected personality disorder. You have to put the focus solely on the PTSD as the reason you cannot work. And forget about the tinnitus, that isn't going to affect anything regarding the claim for TDIU.
Clearly a C and P examiner paid by VA is not going to provide you the evidence you need. That is why you must seek out vocational rehab counselor on your own and submit a letter from them to the VA.