Should I report my cured mild PTSD in the FAA medical certification application? I am a combat veteran who was diagnosed with moderate Posttraumatic stress disorder (PTSD) after getting out last year. I  decided to seek treatment and, upon reevaluation, am now at a very mild rating for PTSD with no personality disorders, and no use of medications ever. I am not even eligible for disability compensation that is how NOT severe my PTSD is or ever was. I am currently in the process of trying to get my FAA Medical Certificate for a student pilot and the FAA came back wanting these extreme and expensive tests that were never conducted by my psychologist because they were deemed unnecessary. My psychologist is writing the report they requested, but I have a feeling they will dismiss it and cancel/deny my application because I only have my medical records and my psychological report and cannot afford the psychiatric evaluations and the VA cannot do them for me because they are not medically needed. 

Now to my question, if they deny it, then I will reapply again, however as I am as close to 'cured' as possible when it comes to PTSD and it does not affect my reactions to stressful situations or anything that could come up in flying (I've been in a helicopter during the healing process so I know), do I just NOT put anything in the mental disorders box? And if so will they hit me back with "hey we know you applied last time with this, so you're a liar"? PTSD is a curable thing and I feel even more normal than before I even joined the military. Thanks for your time.
Unfortunately, you have to report it.  It even says so right on the medical application (emphasis added by me):


  18) Medical History - HAVE YOU EVER IN YOUR LIFE BEEN DIAGNOSED WITH, HAD, OR DO YOU PRESENTLY HAVE ANY OF THE FOLLOWING? Answer
  "yes" or "no" for every condition listed below (All "yes" answers
  require a comment. Click Add Comments to add or edit a comment).
  
  ...
  
  Mental disorders of any sort: depression, anxiety, etc.
  
  ...


Based on your own admission, you had it at one point and are now cured.  This means that you have "at some point in your life" been diagnosed with it.  

Unfortunately, the FAA takes a very hard line on this kind of thing and it does not surprise me in the least that they are now requiring a battery of expensive tests in order to prove that you are fit to fly.  I don't like it either, but it does keep the people out who "say" that they are cured when they aren't, either because they don't realize it or because they just want to fly anyway.

If it is denied, then you can appeal it, but I would suggest getting good professional help.  As voretaq7 mentioned, AOPA has a very good medical service that helps their members for free.  Membership is pretty inexpensive, and more than worth it just for this service, plus they have many many other benefits as well.

A couple of other questions on the site that may help you:


FAA Class 3 Medical re-examination
Can a private pilot receive recurring training while waiting for a special-issuance medical approval?