Originally Posted by hongmonk
what about childhood asthma?
Probably not a disqualification, if you have no symptoms now, have not used an inhaler for several years and are pretty confident you won't show an attack for the rest of your life.
See my reference to the ANO and search it for what it says about lung problems.
Of course, during the medical, if you forget to say that you had this condition, and it's not detected, then everything's cool.
For sure, if you get selected, your time at OBS will be physically demanding, there'll be lots of allergens and triggers, so if your asthma comes back, too bad, you're out.
Only you will be able to guess your chances of a relapse based on your experiences.