The teacher already knows you hate it. You can only be sick so many times! If you have to take the class, get along with it the best you can, and stop making excuses. You can't make excuses for the rest of your life for things you don't like.
School is your chance to experience all kinds of things you wouldn't do on your own. That includes mentally and physically. So take advantage of everything and participate. When I was in 9th grade they made us do track events in PE and I found out I could run fast and broud jump really well. I had no idea. Im glad i didn't play sick that day!