Do you think I am going to die soon?

Hi! I am a 13 year old girl. A couple days ago I went to the carnival, and for some reason the rides made me really nauseous and i felt strange going home. When I woke up the next day, I felt light-headed and my chest was insanely hurting, and this has gone into today. Now my chest hurts a lot still, and it feels like there is a lot of pressure on it. I feel weird breathing, but don't have any shortness of breath. My heart is beating normally. Also, my right boob and armpit really hurt, but I think I'm just developing on that part. I'm just concerned about the chest pain. My mom said she'd take me to the doctor's tomorrow if it doesn't go away, but now I'm getting really anxious and I keep thinking that I'm not going to make it into tomorrow. Can someone please comfort me and tell me what you think is going on? Thank you! :)