Hello I'm 19 years old and have been smoking for 5 years. The past 2 years I've been coughing up green yellow and brown mucus often having black stuff and blood sometimes in it. The past several months I've had major shortness of breath and I cannot take deep breaths. I've notice my lymp nodes are swollen and hard and so is my throat. I cannot go to a doctor and have not been able to find my condition online. My chest is in great pain and my back and neck hurt too. I'm currently in tears from the pain and cannot get a descent breath. Please help me at least have an idea of what it is.

Go to the ER now. Just because you can't find your "condition online" doesn't mean you can't go to a doctor. Doctors don't go online to find diagnoses... that's what they go to medical school for.

If you want to live, you will seek prompt medical attention.