Hello again helpful people. I thought I'd update on my progress managing PMR, which was not going well 3 months ago. I took your advice and visited the dentist, to have a wisdom tooth out and no prospect of Alendronic Acid for at least 3 months, so that was worth it.
But after I failed at reducing from 15 to 12.5mg, and again from 12.5 to 10 mg and then my GP would only give me a plan via the receptionist (taper 1mg every month until zero), who couldn't answer any questions I realised something had to change and, as you also advised, I asked for a new GP.
At the first telephone appointment, when I said I couldn't successfully taper, my new GP immediately answered that some people can't manage the recommended decreases and has put me at present on a 0.5mg reduction per month. I now have telephone appointments to discuss my progress and next step every 3 weeks. As a consequence my symptoms are now much better managed, my stress levels much reduced and I am much happier. And the new GP hasn't mentioned AA once!