hello,i have ongoing upper back pain on the right side where i was hurt with my playmate s elbow while playing volleyball...it was about a week ago and NOW it hurts...the pain increases when i breathe in. i also feel lightheaded my puls is strangly weak and than races when i start walking...it was ringing in my left ear for a short while, i had a few sudden attacks of pain in my chest during the day,i could not breathe normally and then it stopped, also when i was walking lightheaded my teath were i don t know the word...shivering?shaking like when you re cold but i wasn t cold and my body was shaking too...i feel much better now but the pain in my back won t and my chest slightly hurt everyonce in a while . I actually called er but they told me it was an urinary infection which i doubt and therefore need a second opinion. thank you