when ive had tests done when my breathing is playing up im often told that my oxygen levels are ok - often between 95 -99%. the only time they drop low is when ive got a chest infection. been told that this is normal for asthmatics----so why do some medical staff say it like i cant be feeling ill if its not low before they check my chest and hear im rattling like a baby toy? wish this was common knowledge as i get sick of having to say this when i can hardly speak. is this just me?