What's wrong with me

I suffered from ragweed allergies in october,2006 , i was sneezing and cough most of the days for a whole month. My symptoms went away but left me breathless. I dont sneeze or cough anymore the only peoblem i have is shrotness of breath and occasional chest pain. my doctor told me i have postnasal drip which is hyperinflating my lungs. Could i have emphysema or COPD . i smoked for 2 year in my life and quit last year.. I am only 21 and very worried..is it possible to have emphysema at this young age and that low years of smoking history. My doctor Prescribed me Flonase 50mcg nasal spray , Flovent HFA puffers and Apo Salvent CFC FREE inhallers, which do help me breath normally at time.. what do you think is wrong with me? Thankyou

[Deeds]

I would consider going to get a second opinion. While it sounds more like asthma to me, I am not a doctor.  I would want an allergist to look at me and get some more information other then being told at 21 that I have emphysema...

[sum12]

I did went to the allergist and was told that i suffer from ragweed allergies. now it has gotton worse..i think i hav sum sinus problem  since i developed some growth on my face and my ears hurt at times.  i have some pain in my rib cage as well...