upper back pain when swallowing

I am having moderate pain in my upper chest, shoulders, and upper back. What causes this?
I am a smoker and an occasional drinker. I am 26 years old with no insurance. I am having a hard time eatting or drinking. It feels like it gets caught every time I swallow food or drink. I am very uncomfortable.
go to the doctor it could be a minor muscle pain or symptoms of heart attack.
Reckitt Benckiser – Nurofen 3D