I had an appointment for follow-up with UK Biobank (Google it - it's interesting) and had all manner of tests. I had been avoiding weighing myself and found that I had put on more than two stone in the past year. I can't entirely blame the pred - I have bad habits and have probably used the pred as an excuse. Now I know the worst and have to do something about it. I suspect my bad back is something to do with excess weight rather than PMR. On the positive side, the heel scan was completely normal. So no osteoporosis. Cheers!