5 days post op

Hi everyone, I am now 5 days post op. I am doing pretty good except I developed either a bad sinus infection or cold and have gone thru almost a box of tissues. Is there anyone that has COPD and had WLS? I have COPD and have a very hard time breathing. I used to smoke but quit 13 months ago. They say walk, walk, walk to get your exercise in and strengthen yourself after WLS. But I just walked out to my car and was SO out of breath. I am scared that this won't go away. Does anyone else have any experience with this? Thanks! Cherri