It is frustrating. I never did manage to get my T to tell me a diagnosis this last year either, really. I told him I thought it was seasonal, so he talked about Seasonal Affective Disorder, and months later he also brought up the possibility of Bipolar Disorder. We also talked about diagnosis in general - that it is a tool for describing what is going on with someone in a way that makes it easier to communicate it to others, but that people often don't fit one diagnosis very well. Lots of people have more than one diagnosis and then they have to decide which one is primary, and that can be difficult to determine. It comes down to that the whole concept of diagnoses is the medical model, which tends to assume that the mind and the body are separate entities, and that you have a disease, and then treat the disease rather than the person. So a lot of professionals don't like diagnoses, as they recognize that you are a person and they want to work with you and consider your unique qualities rather than stuff you into some pigeonhole. So sometimes that is why they are reluctant to tell you a diagnosis. But I still want to know what it is - if a diagnosis is useful for communicating about the problem, the client might learn something useful from it too.

Dexter, about the Axis stuff - try not to overcomplicate it. Axis II consists of the personality disorders (disorders based on long-term personality traits). Everything else (considered more acute and generally shorter-term) is Axis I.