Hi T, thank you for replying, conditions, C.O.P.D. for 20 years, 3 crushed discs in lower spine + athritis in spine, for 25 years, cervical sponylosis for past 2 years...my biggest problem is i have worked with these conditions for 42 years, but the last 2 years have seen a dramitic worsening, oh and i will need knee replacements. all this was backed up by written evidance, still, they know best eh!!!, thanks again