I don't know if anyone can explain this for me. I just took my peak flow (standing up and on old scale) and reached 600! My previous best is 570 and my predicted is 470. All sounds good but after blowing 600 my chest felt tight almost imediately, got quite tight (for me) too.
How come i managed to blow so high? Could it be cuz i've just started a new inhaler (symbicort 400/12 - only taken 2 doses so far)? And why did my chest go tight so quickly?
A lot of questions i know but i'm a totally confused by it :o/