COPD caused by SJS?

[aap03]

A little about me. I'm 25, former smoker(quit a few months ago). Last year I was hospitalized with Stevens Johnsons Syndrome(SJS), which left me with chronic dry eye and chronic bronchitis although I did not experience any obvious respiratory symptoms. Prior to that I was absolutely healthy and played sports and worked out fairly regularly. After a few months recovering from this, when I started strenuous exercises i.e. running, sprinting, I felt my chest tightening up. I went to a doc who said it was probably asthma and prescribed formoterol/budesonide and montelukast sodium. A few months later, my bedroom was treated for termite infestation, the fumes of which I presumed cleared up after about 4 days. After returning to my bedroom for a few nights, I woke up in a panic with severe SOB. This pattern continued for 2 more nights before I went to see a pulmonologist who said it sounded like asthma and prescribed oral prednisone for 5 days following which I did a PFT and was diagnosed with asthmatic bronchitis. I did a follow up test 2 months later. The numbers for the tests in % are below.

Sept.15, 2007
             Pre                    Post

FVC      82.2                   83.9
FEV1    61.8                    64.1  
PEF      89.6                    83.2    
RV-He   92.1
TLC-He  84.9
RV% TLC-He  109.4
DLCO SB       62.9
DLCO/VA       90.0


Nov. 23, 2007
                Pre                     Post

FVC         84.8                   84.63
FEV1       70.2                    69.1
PEF         88.1                    90.3
RV-He      65.0
TLC-He     80.4
RV% TLC-He  82.7
DLCO SB   54.1
DLCO/VA   81.6

How would you interpret the results? What do you think the cause of my COPD is? Long term prognosis? Cause of low DLCO and drop in it from test 1 to test 1? I am currently on tiotropium bromide and salmeterol/fluticasone propionate. My reason for posting this is one doc is pessimistic and the other highly optimistic.


Thank you.

[aap03]

Forgot to add. I smoked 10-12 cigarettes a day for 9 years

[aap03]

Also, I have always been it but underweight by 15-25 pounds. Just thought it might help :-)