im a 22 year old smoker, have been smoking for seven years,recently i was diagnosed with acute bronchitis, i was having breathing difficulties, but i get the feeling its a gas related problem , i had a spirometry done, which says my FEF 25-75 was 36 % of the predicted value , Fev 1 73 % and FEV 3 97 %, can this happen due to acidity, also my doctor says it was an allergy problem and it wont happen again, can i smoke again after recovery ? after 2 weeks of formonide 200 my test results were FEF 25-75 was 73% , FEV 1 96% and FEV 3 111 %, i want to know is this gas related, could it be or is it bronchitis ?