Why do tonsils get hurt while coughing?

Hello doctor,

I am a 14-year-old male. Last week, I had really bad pain under, which I realized was my tonsils. I went to a doctor to get it checked out. He said they were definitely infected, but they did not give me any medication. He said it would go away by itself. Now, I have a really bad cough. When I cough, it makes my tonsils hurt like crazy. Last night, I had a really bad coughing fit that I could not breathe, so I ran to the bathroom, and ended up coughing up blood.

Also, when I sleep, I feel as if someone was pressing on my chest, and it is hard to breathe and it is also hard to swallow. Currently, when I cough it hurts my tonsils, my chest, and now also my head. Only when I cough, I get a sharp pain on my left temple. I feel awful. My mom said I also look really pale, and my teachers have been asking me if I am fine because I do not look well. I do not want to go see a doctor, because it is a waste of time if I do not get any medication. Please tell me what I can do to feel better.