I had a lot of trouble getting diagnosed because I was "too young." It's frustrating. On the other hand, if your doctor is treating you for bipolar disorder and the medications are working it might be nice to continue to exist without a label. That's why my T and pdoc didn't want to diagnose me because they were afraid that if they were wrong I'd still be stuck with the wrong label. So maybe thinking about it that way will help with your frustration. I wish you the very best.