sarabeth87
New member
I'm not sure how to ask this question and make it make sense, but as I've mentioned, my FEV1 has gone from being in the 90s to 70% in the past two years. Also in the past two years, I've somehow gained 20 lbs. Is it possible that my FEV1 hasn't really decreased that much, but that when they enter the numbers before I blow in the machine, that my being 20 lbs heavier makes it look like my FEV1 should be higher?