Is this a psychiatrist, psychologist, psychotherapist, counsellor? Because only some are 'allowed' to give an actual medical diagnosis, if it's a mental illness or a personality disorder.
How long have you known this T? Maybe they haven't quite figured you out yet, don't know enough of your story... And maybe they just don't know yet.
*Also keep this in mind as well, often people can be misdiagnosed for years or often even for DECADES, as in my own case and I've met many online who've had a misdiagnosis for decades as well. This may sound discouraging but for others this is actually hopeful. I had the wrong diagnosis on my damn health chart for DECADES. anyone in the health care system can see it. I'd see an ENT and he'd say, "you're bipolar?" No. Actually I'm not. Took decades to get that off my chart. And to get off the meds I was wrongly given, for DECADES.
Also, there are some diagnosis' that professionals are not terribly eager to share with a patient or will very slowly drop hints as some diagnosis' are dificult to accept, carry stigma and some diagnosis can push some people over the edge. ( for example the diagnosis of Borderline. It is common for them to tell the family but not the patient. (No believers can google this fact). I met a gal a couple years ago... Something was very wrong but she had good stuff too, like everyone. As we continued our friendship I did some research. A LOT of reading. I knew she was borderline. I printed some stuff off and gently gave it to her. Extremely intelligent gal. She couldn't wait to see me again, she was incredulous that FINALLY she found what was wrong with her and headed to her shrink. The psychiatrist and her family confirmed that they had always known that she had BPD but they always thought she'd suicide. Suicide was not an unfamiliar thing with her. Her last attempt she had, she tried to take her children with her (kill them). Had to break off the friendship bc she began stalking me... ANYWAYS that is one diagnosis they often hesitate to share ...
Sometimes a person has more than one or several diagnosis and they think that this would overwhelm them. As for myself, C-PTSD, GAD, agoraphobia, ADHD.
If they think a person is in pretty delicate shape, they may not want to share a heavy diagnosis.
Also, some people are hard to diagnose because they 'present' themselves well. (Re: presentation- I have a family member that's a narcissist, presents herself well but when employers start to see their true colours this family member is constantly being fired for controlling manipulative behaviour and trying to over ride the boss.) So presentation counts. Sometimes we unconsciously try to hide stuff because a person becomes accustomed or adept to hiding their garbage (shortcomings, dysfunctions) in public but carries some of that 'hiding' behaviour into a professionals office.
And like others have said, sometimes a counsellor will say that they want to focus on learning new skills/behaviours, focus on the positives.
@Mammo you're not the only one. I think about my demise EVERY SINGLE DAY. There are others in this position as well.
If I had any sort a diagnosis however, even the ones I have, I'd sure want to know, so I know how frustrating you must feel. It used to drive me nuts feeling like I didn't know what was wrong with me. But I know all my short comings and symptoms and dysfunctions. I also know what I don't have. All I want is healing.