Hi everyone, thanks for the replies. Since I posted this things got worse, last Monday his back gave out and he ended up sofa bound. He has been there ever since, with the exception of a couple of painful trips to the loo.
He refused to do anything about the pain, insisting he had pulled a muscle. Eventually his girlfriend made a GP appt for him, but when he tried to get to the car he couldn't and had to give up. He was meant to be back at hospital on Friday for further tests but couldn't make it, and had left it too late for them to arrange transport for him, so he is now going back tomorrow.
I have absolutely no control over the situation, being separated from him, and between them they seem determined to make things worse. Surely it can't have been good for him to be sat on a 2 seater sofa for a week, propped up with pillows?? He's 6ft5 for goodness sake.
Anyway, he's still in extreme pain. The gp prescribed some painkillers on thursday which his gf picked up for him, he says they helped slightly.
I'm fairly worried about him to be honest. I'm finding it difficult to deal with, being quite isolated from everything, I only know what he tells me and I don't ever know how selective he might be being with the information he passes on.