Thanks mate.It goes without saying but take it easy.
I will make an effort to be far more reflective about what I do! It is not as if I was doing anything heavy before it happened, a little light wood-butchery was all. and caring for Pat as she was ill.
But that is the way it goes. I think in fact sitting in one particular type of chair for long periods of time is partly to blame. It feels supportive, but just might not be. I have awful posture at the ebst of time, when sitting. possibly due to this having been with me since I was 17. It is a wood backed dining chair, but I will endeavour to stay out of it for the next few days!
I wonder if others have their own pet remedies?