So my mum had this thing about believing that no one could ever be sicker than her. She is pretty severely asthmatic (as is that entire side of the family). My sister had childhood asthma but grew out of it but I developed it most likely around puberty. I would weeze and not be able to run without feeling like I'd faint but according to mum it was only that I was lazy and out of shape. If I even mentioned asthma she'd just say "no you don't, I would know".
Fast foward to me being 23 and I got recommend to get checked for asthma. The doctor did some background and asked how long I felt like "there was a lump in my throat keeping me from breathing correctly" I said puberty and gave the family history. The doctor was just baffled and said that I should've been medicated for a decade and that I might have lung damage because of not treating it. My overall health is so much better now and it just makes me sad that my mum's stubbornness kept me from sports and activities for feeling like I wasn't "built" for it when I had a treatable illness...