A Pulmonary Nodule Was Recently Found On My Left Lung,

A pulmonary nodule was recently found on my left lung, 17mm in size. I've had a CT Scan, waiting for results. My Father and 4 of his uncles have died from lung cancer so I'm pretty nervous about the results. I've been having health issues for the last 10 months. A cold, that turned into bronchitis, I've had blocked sinuses so I had surgery in January to remove pollups that were blocking them. I cough every night, I here funny sounds coming from my chest at night, strange gurgling, crackling, and coughing. I'm 53 years old, never smoked and never had any issues like this before. I'm afraid I have lung cancer.