It almost certainly means that you have some type of clinically significant lung disease. "Cloudy" just means that the disease process is widespread. The x-ray findings must be combined with your medical history and a good physical exam, especially of your lungs, to narrow down the possible diagnoses.
You should ask your doctor to explain what he/she thinks is going on, what is the likely diagnosis and what other testing will be required. If your primary care doctor is unwilling/unable to do this, you should request consultation with a lung specialist.
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