severance vs retirement

Currently Med boarding and got my 100% rating for PTSD from my deployment. My question is, Can I request a severance package, just to help me out as I'm leaving.

Hi there. I have an unfair DOD rating, because when I went for examination, I had a flare up due to my radiculopathy. So examiner didn't measure my ROM. Instead, she put!! Estimated!!! 70!! degrees forward flection. With a help of a lawyer I denied it. But never received a notice to reevaluate...