I'm glad the tube is helping Eluned. I should use pillows in bed too...

I should clarify - my core is good now. It is pretty strong actually. It is the external muscles that need to be rebuilt. You have to start in and then work outwards. Now I've stailised my core, I'm able to do a variety of exercises which will strengthen other muscles. Before I rebuilt my core, I wasn't able to work my legs at all. It's just evrything else is now deteriating after so much abuse over the years - dancing was not kind to me!