### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I believe I have had H1N1 - though did not consider this until this week.  First came on suddenly Dec 19 with sniffles.  Since then have had all respiratory system involvement in stages - throat painful - used salt water gargle, stuffed and runny nose, seriously plugged left sinus under eye - used saline spray, went into lungs - lots of coughing and at other times it stays quiescent although feels irritated lower center, occasionally chest hurts.  Have coughed up and lots of phlegm - dark yellow, green, and after a particularly heavy coughing spell may have light blood streaks and this has been when hard to catch my breath.  I have not seen a doctor as was treating as just a viral cold,as my normal body temp 97 and highest was 99 and then immediately dropped to 95.   Most recent 96/97 again. This is now 2 weeks.  Nose still a little runny, not coughing much today, but am feeling "slightly clogged" in lower lung.   Other meds for cold have been Benylin and Advil cold & sinus.  I have also had a touch of diarhea, lack of appetite.  My MS is currently asymptomatic and while lethargic have not had the onset of MS fatigue.  I do not like to go to the mediclinic unnecessarily, but should I be considering going now after 2 weeks even though my primary problem now is lesser degree of phlegm in my lungs?.

### output:

Thanks for your question on Chat Doctor. I can understand your situation and problem. You are mostly having either bronchitis or lung infection because all your symptoms are seen in both of these conditions. And multiple sclerosis (MS) can be the risk factor for both of these. So better to consult pulmonologist and get done 1. Clinical examination of respiratory system 2. Chest x-ray to rule out lung infection 3. PUT (Pulmonary Function Test) to rule out bronchitis. If both are normal then possibility of viral Upper respiratory tract infection (URI) is more. So better to first diagnose yourself and then start appropriate treatment. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.