My GP has told me to keep a close look over my peak flow readings so i can work out if i am likely to have an atack or not. i felt the explanation was rather rushed and i don't really know what i'm looking for. My personal bes is 400 although on a really good day it can be slightly higher but at the moment its about 150-180 in the morning and around 300 in the evening. i do have quite bad symptoms each day and feel i use my sabutamol far too much. i don't like to keep pestering my doctor but i don't now if these peak flows are normal and i'm scared of needing a hospital addmision.