Well I am on my 7th day prednisone & still feeling sob. This last month has been tough for me as I seem to be going backwards. I did rehab and was walking 1/2 hr outside or on treadmill and now I can barely walk 10-15 min without feeling like I can't breathe even with my 02. Sometimes I feel like that sitting and never use to. Doc put me on prednisone & scheduled for CT next week. Dr says it could be an excasberation and I hope it will be temporary. I feel like I want do things and starting to get discouraged. I have stage III enphyzema.