Thank you everyone who sent messages to me, sorry not to have replied but hospital doesn't have wifi and couldn't access the techy solution son had put on! Apparently nasty little bug had been nesting in bottom of left lung for ages but only clear sputum and no one could hear anything - sneaky! Took X-ray to find it. Ivs galore, cannula had to come out as arm like a balloon, 5 attempts later finally got another in, innumerable blood tests, fun, fun,fun. Won't tell me when I can go home still I had a fabulous Chtistmas and it explains why I kept having problems. Think walking up pub with leg weights on was last straw!!!! Happy new year to one and all, think I have been sitting up to long time to recline in best Velvet fashion. God bless.