<br /><i>1. Are you on O2? If so, what is your FEV1? Does your FEV1 seem to change when your O2 therapy needs (i.e. O2 sats) change?</i>
<br /><b>I first went on O2 last summer when i had pneumonia and pleurisy. My fev1 at that time was around 30% ( i was in the 40's before that)</b>
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