Ok, here goes:
I am currently a graduate student...I got out of the Army this past November with a medical discharge due to sulphur fire inhalation in Iraq (the Army says my breathing was jacked up) and also, they were giving those that have been in a combat zone a "blanket" PTSD disability.  Whether you truly have it or not, the counselors told me I would get more money from the VA - so why not right? I'm not on any meds for either of the military associated problems.  I went to an AME and disclosed all the information, he checked me out and granted me a 1st class medical (saying a lot of the folks evaluating soldiers are ignorant - I can't disagree).  Anyway, I'm good in the medical area.  Another issue is I got a DUI during my younger undergrad days 6.5 years ago.  Dumb move, but I learned my lesson.  I know that many airlines require a 10 year background check and within the 10 years (only been driving 10 years) I have gotten 2 speeding tickets (one being 5 years ago and the other 1 year ago) 1 turning right on red ticket (10 years ago) and a reckless driving ticket - driving to a soldiers funeral that died in Iraq - (2 years ago).

With all of this crap that I have just thrown out there, will I be laughed at when trying to get an interview with an airline, or will the interviewers look at who I am as a person and not hold that DUI against me as well as a medical military discharge or pigeon hole me?

I know this thread is long, but I just want to cover all aspects of my issues and get some insight before I take that leap into $50,000+ aviation training debt. 

Thanks in advance and I look forward to hearing some help!