Gosh Bren I am amazed they didn't send you home! And really sorry to hear the missus is feeling unwell again, her immune system needs boosting bigtime.
She likes carbs big styleee - I try to get her on the atkins but she loves her cereal and bread and pasta and rice - she is on a big amount of B vitamin that the doc has put her on and she says she feels ok even quite good although she feels there is something lurking - I really think a key for her would be exercise to strengthen her lungs and increase her immune system but she is such a couch potato, sometimes I despair!