Hello - thanks for asking your question.
Multiple pulmonary nodules have many causes - it is definitely recommended that you seek a pulmonologist.
Causes can include malignancy (i.e. metastases or lymphoma), infection (multiple abscesses, fungi, septic emboli), rheumatologic diseases such as Wegener's Granulomatosis, or pneumoconiosis/silicosis.
In any case, your findings needs to be interpreted and evaluated by a pulmonologist.
I stress that this answer is not intended as and does not substitute for medical advice - please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.