Update
So, just a quick message to say that I've got an appointment with a neurologist next Friday. And the nurse who set up the appointment was sorry she didn't manage to find a slot sooner "but at least you get an awesome doc. He's really good." That's ok, I really don't mind. Now I'm just waiting for word from my GP (who's awfully busy today), to plan a bit of a strategy - should I start exercising, to up my blood pressure so as to make it more likely they'll find something, or not? To sweat or not to sweat, that's the question. *g*