I have mild cough x 2 yrs and wheeze heard loudest upper right chest and back. docs don't seem concerned normal x-ray. i'm scared lung cancer. ideas?

Need more informatio: Need more information as to any past history of asthma in childhood, history of smoking if any, any pulmonary function tests done in office and report, any responce to meds like steroid and bronchdilaters if ever prescribed.If the xray is normal lung cancer is not likely. If you are still concerned consult a pulmonary specialist.It may be asthma or COPD need pulmonary function test.It may be reflux.

Chronic cough: You should have more work up then just an x-ray, but cancer is just one possibility, and other things are more likely. See your helpful pulmonologist and get pulmonary function tests. Reflux, asthma, chronic bronchitis, COPD are all possibilities.