Am I Over Exercising in Athletics?

Everyday when we run, my chest feels like my heart is going to go into cardiac arrest and my lungs feel constricted. I also get dizzy and when we run in the cold air, my ear cs hurt deep inside. Sometimes i get huge headaches that sometimes cause me to be out of school the next day or they linger until late in the day since i have athletics first period. I do have asthma and i've had since i was born. I tried to ask my coach if i could sit and rest but she wouldn't let me and she wouldn't let me get my inhaler. Should i get out of this cl or does running have nothing to do with it?