I've been put on Oxygen this last infection - my count was 84. My FEV1 was 36 - a new low. Would like to know if you have been on oxygen, and if you ever got off. Also, now that I'm feeling better and trying to regain my strength, I go walking. The shoulder strap is uncomfortable, and I get a lot of looks, so we are trying out a back pack bikers use (for drinks), cut out part of it for ventilation -- it's more comfortable and, hopefully, less obvious. Have you ever seen some sort of carrier?