Folks! keep in mind that anyone who has a diagnosis with an "Itis" in the name indicates INFLAMMATION. Bursitis , Arthritis and Tendonitis are all things joint inflamed - which are partially METABOLIC in nature meaning your body is metabolizing inflammatory elements from what you feed it and it affects your joints among other things. Some days when you feel particularly tired or sore and just Bleeeeeehhhh! think about what you had the day before !