Latest interim payment arrived yesterday, two months after being agreed. Fortunately this should cover my loss of earnings, so I can stop sweating.  Ended up having acupuncture yesterday from the physio after she battered my back. 
 
 I have a "one on one" pilates session tomorrow, with a view to going to their classes.  Whilst I have gym membership, the physio said this will work out more cost effective than seeing her every week - so going down to physio every two weeks, and pilates once a week.  This is in small groups so they can stop me doing too much.
I've now got a good range of spinal movement, and when bending there is a good curve.  My pain is all muscular now. I've seen a huge difference after just 5 physio sessions.