2 months slight dry cough. ex smoker for 14 yrs. 2xrays.bloods all fine. seen thoratic specialist. suspect asthma. could it be lung cancer. ?

Cough: With two normal chest x-rays, the chance of lung cancer is quite remote. Asthma is much more likely. Keep following up with your doctor.

Congratulations on: Quitting. I'm an ex-smoker off for 30 years. Relapsed many times before finally ditched them for good. You might see a pulmonary specialists to probe the cause of your cough, review your x-rays, and consider pulmonary function tests. It would establish a post-smoking baseline, but could reveal copd, asthma, other lung or heart ailment or that all is well. Highly unlikely that you have lung ca.