Well, I stopped having asthma when I was like 14 and I started smoking when I was 17 so what does this mean?
Actually, its been proven that asthma never goes away, it just receeds and becomes nonactive. It might not become active again but it could become active any time or not at all.
You were 17? damn you were old when you started. I was 13 when I first started (i hung out with all older people, 15 and 16).