Depression, anxiety disorder or add?

About 6 months ago, me and my husband were about to divorce. Then he quit smoking, and I found out about add in adults and immediately thought he could have it. I showed him internet stuff about add, and he was amazed to see that such a condition exists and that it looked so much like he had it.  He started to see a behavior therapist and I abandoned the idea of divorcing him, since he was doing so much effort to change. The therapist didn´t care about whether he had add or not at first, saying that it wasn´t important, and that he should focus on changing his behaviors no matter what was causing them. Finally, after 5 months of therapy, she decided that he might have add and it would be a good idea to try the medicines. She told him to see a psychiatrist. He has seen two of them. Both did, in less than a few minutes, discard the possibility of him having add, on the basis of his master and PhD degrees and a 10 year marriage. According to them someone with add couldn´t possibly achieve any of these things. They haven´t even asked about what kind of relationship we had, or how he managed to do a master and a PhD. We know how much he has struggled in his studies (I saved him lots of times..), how much longer than normal he has taken to finish his PhD (6 years and a half!), and how bad is our relationship (Actually I don´t know if my husband knows that). The therapy has helped a lot, but not enough, we were really looking for a chance to try the medicines. The doctors have been pedant, rude, not interested in listening, and very very quick to reach their conclusions. And, by the way, they had different conclusions. One of them suggested he has a "mild depression" . The other one has no doubt that he suffers from anxiety disorder, that the behavior therapy is taking too long and should be finished by now, and he should start a psychodrama group therapy (and hasn´t even explained what the hell it is!), and told him not to seek a diagnosis, but to work on the practical problems. How stupid... you just need a few minutes in the internet to know that they´re wrong, the way you treat a person depends on what is causing the symptoms, does it not? It is unbelievable! I still think he has add, because he has ALL the symptoms of it, and this actually makes me feel better about him, to think that he has a neurological problem that explain his behavior (which otherwise means no love, sellfishness, and total lack o care and respect) is a good thing. And best of all, to know it can be treated brings a lot of hope. How could a doctor say it is not important to have a diagnosis? These stubborn doctors won´t even prescribe the medicines to see if they work. Am I wrong? Should he accept the doctors point of view? Is anxiety disorder similar to add? Can a "mild depression" cause the same symptoms as add?