How do I get help for ADD-AD/HD?

In my early 20s, I was diagnosed with ADD by a medical doctor.  At the time I was against taking medication, so I blew him off. Now, I'm in my early 30s taking medication for anxiety and depression as prescribed by a psychiatrist. My depression has decreased, but the anxiety has not.  My psychiatrist believes I am suffering from PTSD from having gone to Iraq.  Although, to an extent I believe this is true, I do not believe it is the major cause for my symptoms.

I read an article about adults with ADHD and it was like they had written it just for me. I get easily bored with jobs and often quit.  I do become obsessed with activities I like, them drop them at a whim. Also, I constantly feel the need to be doing something.  I hate just sitting in one place.  It makes me very anxious and leads to irribility. I hate socializing with people and do not keep people close to me for a long time because I get easily tired of their drama. One more thing, even as an adult I have a quick hot temper, but cool off quickly.

I don't want to come off like a druggie looking to take what I can. So, how do I approach my psychiatrist with this issue? I am desperate to feel "normal."