Most people with asthma in young childhood do grow out of it, but if it's diagnosed from teenage onwards, it's with you for life. Emma does not have asthma
If she thinks she can "cheat" her peak flow testing, she can't. She'll be sent to an asthma clinic where they WATCH YOU do your peak flow testing, for a start - they don't just take your word for it LOL, & she'll have to explain her lifestyle; what she eats/drinks, how much exercise she gets, does she smoke, drink alcohol, her weight etc., etc., .. anyway, I don't know why she's so giddy to have an illness, her travel insurance premiums will skyrocket because of her age and liability.
* cough*
munchausens *cough *
She's so desperate for something to be wrong with her. She's such an attention seeker. No wonder Stephen always looks like a hostage, living with her must be exhausting.