I have really bad anxiety?

Hi. I'm in eighth grade. Our school requires us to play at least two seasons of sports each year for 7 and 8 grade. I really hate playing sports. I stink at athletics and I have asthma and bad allergies. I really don't feel comfortable playing. Even for this season (I'm not playing this season), it really gives me anxiety and makes me feel sick. I had to start taking anti depressants which don't help. So last year, I tried football and hated it. I also had bad allergic reactions to the gr. I only had to play one sport, tennis (I liked it), because I had h1n1. This year, though, I either have to do swimming or wrestling. I hated both when I tried them. When I think about playing a sport, I get bad thoughts. I really don't want my anxiety to affect my school work. I also can't change schools, since I really like the school, except for the requirement. I have tried talking to the sports director, but he doesn't care. Please help me.