Chest Pain Originating from Backbone.

On 10th October when i woke up i had a dull pain on my spine.The pain was there around 2-3 days and i was also coughing up white cough.Slowly the pain started moving towards my left arm. My left arm was paining for around 2 days and then it was ok without taking any medications.However yesterday my pain in the spine is causing some chest pain.It seems like chest pain is originating from the spine.Today morning it is fine.I was a smoker but have quit smoking from past 5 Months.I work in a desk Job.So usually sitting up on the chair for 9-10 hours everyday.As i was a smoker i am thinking can this be lung cancer.I dont see other symtoms like Weight Loss,Loss of appetite or Loss of Energy.I am a bachelor and i dont eat home made food. I have TB screening in next months as i am applying UK Visa and i am also worried about that.Please help me out.Thanks in Advance.