ptsd Bad advice on claim?

[Chief276]

I am very new to this and need some good answers since my rep is difficult to contact, and I don't have a warm and fuzzy about what she has already said. I am 80% SC for PTSD (70%), back (20%), and sciatic nerve (10%). I am preparing another claim for stage 3 kidney disease, bilateral tinnitus, sleep apnea, and lung scarring. I agree with all except the lung scarring. I quit smoking 20 years ago (53 now) so that may be the reason for the scarring. I have had pneumonia twice in the last 12 months which also can cause scarring. I was a mechanic for 30 years and exposed to asbestos, fuels, solvents, etc. but I can't prove SC to any of them. The lung claim is her idea and I believe I should remove it  from my claim. Any input on that is appreciated.

Also, there is the issue of TDIU. I recently resigned from my job because of PTSD. Should I add TDIU to my claim, leave it off, or only claim TDIU and leave the others out?

[Chief276]

So if I claim it all, including IU, will they grant IU while the rest is being evaluated or does one decision letter cover it all?