Weaning off of prednisone & pain management

Last Tuesday, I went down from 7.5 mg of Prednisone down to 5 mgs. For the past 4 days my pain level has been a 12 out of 10. I could barely walk. Although I hate to take Advil, Motrin, etc., I took 2 Advil Gels and within 1 hour I felt better (not perfect, but a lot better). Hours later the pain started to come back but was maybe a 6 out of 10. The next morning I was crippled by the pain all over again. I forced myself to get moving, but could barely get around. Drank a lot of ice water, and before I went to bed, I raised the head part of my bed up and fell asleep. Woke up this morning with very little pain. Has anyone experienced any type of correlation between raising your head up vs laying flat, and the amount of pain you will experience? Had that slight change made that much of a difference in your pain level? I have found that drinking almost all my drinks with a lot of ice, definitely helps with internal inflammation. What are your experiences or thoughts regarding this matter? Thanks!