9mm nodule in mid right lob 35 yr old female history of smoking for 5 yrs none in past 8 . sob and a lot of discomfort.?

Biopsy : The is a large nodule, however, the best thing is to get it biopsied. You can also get a pet scan, simullar to a cat scan of the lungs and this will let you know if its cancerous. In general after 10 years of quiting you are at no higher risk than the population in general. However, if you are short of breath, particularly if that is new you should seek immediate attention.

Further evaluation: A 9 mm nodule discovered on a chest x-ray or chest cat scan warrants further evaluation and follow-up. What is done about depends on the appearance, location, and rate of growth. A solitary lung nodule of that size may not cause any symptoms whatsoever, or may be part of a common disease or syndrome that may cause "shortness of breath and discomfort." consider consultation with specialist.