What is this horrible cough and chest pain?

i wake up at night with a bad cough and cough up blood and green stuff and i have a pain under my breast bone and i always feel sick what could be wrong?

Please see a doctor, it sounds like you might have pneumonia, which if left untreated can result in serious complications or become fatal.

Definitely see a doctor as soon as you can. The color you are seeing is an infection and the blood is a result of this infection. The pain is most likely from your coughing but you need to get some testing done asap.