I was placed on TDRL from the Air Force about 4 years ago and since then my condition (PTSD) is now improved drastically to where it is pretty much non-existent and I would like to return to active duty. The provider that did my evaluation agreed. However, the board decided on removal from TDRL and severance pay. I obviously do not agree and elected for a formal board. What should I do to prepare for this and what should I do to prove if I were returned to active duty that I would not have any issues? What should I use as supporting evidence to help my case?