I have taken Predisone Dose Pak's before for Pneumonia, but I've never had to take it routinely, until recently. My Rheumatologist has prescribed Prednisone 5mg daily now to help the pain and swelling in my joints. I really hate the side effects of Prednisone, and I think it's affecting how I feel when I use marijuana. I feel more light headed than before, and just not quite right. I know that Prednisone can do that by itself, but it feels worse after I use marijuana. Has anyone else had a similar experience? Prednisone is a steroid.