Guardians keep telling me that my Breathing problem isn't serious, what do I do?

I had asthma attacks when I was very little, the first time it happened was when I was around 6, I woke up feeling very weak, I couldn't walk and my breathing was labored along with wheezing. But it went back to normal as well as my breathing, then layer, when I was 8-9 I had a random asthma attack after drinking apple cider and then again, it went back to normal after a few days. Then in the future I only had labored breathing whenever I would go up the stairs or run, it normally last for a week but then it'll go away, but recently, 3 or so years ago, I had a asthma attack randomly and I basically thought it would go away in a week but it didn't, so I waited for another week and still, Labored breathing and a hurting chest. And now it's been 3 years and I haven't breathed normally in 3 years. It's not something that goes and comes back, I mean my breathing is always labored and when I run It gets worse. Whenever I tell my guardians this they always dismiss it as I'm out of shape which doesn't make sense cause im actually kinda active, I even expressed that my lungs hurt and it's hard to breath and they dont listen. but whenever my cousin has a headache or her stomach hurts she gets taken to the doctor right away but they always dismiss what's going on with me and Im really concerned now since it's been 3 years and this problem is still here, and I fear I could end up somehow passing away cause of this cause I heard similar situations, similar to mine, and sometimes the person struggling with this lung problem would end up passing after being ignored for a long time. Anyway, feel free to comment.

Guardians keep telling me that my Breathing problem isn't serious, what do I do?
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