Asthma actually takes many forms. I had it too...probably since I was a child. It is commonly misdiagnosed as bronchitis especially in kids. It was only a problem for me when I got sick with an infection of some sort. Then I'd be sick for a loooong time. The medications didn't work because they were treating me with antibiotics which don't work for asthma. You ought to go have an allergy test. One doctor finally recommended that I found out my big allergy was mold.
It hasn't bothered me much in the last 10 years. I only had inhalers when I was sick and I hated them. They always made me feel bad for about 20-30 minutes.
But its not too big a deal. Like people have said, you can outgrow it.