I think telling the pdoc that you've been keeping a journal and you've noticed a pattern in your mood is a great way to bring it up. And that you've made your own mood chart, that's great! Definatley bring that as well as the journal to your appointment. I know it's annoying but with things like bipolar sometimes having that 'proof' helps me feel like I'm saying "look, I really have concerns about this and you really need to listen."

I didn't know they didn't recognize BPII in the UK. I wonder why? It's probably good you're switching to a new pdoc if the other was rude to you.