I began experiencing left hip joint pain 2 days ago. I am an active woman and work out 4 times a week. about 5 mos ago i was very sick with bronchitis and received an injection in my left buttocks. tonight as i was massaging my lower back and hip area, i noticed a very clear indention in my left butt cheeck. when i looked in the mirror, there is clear muscle atrophy/wasting in this one area. i believe this is the same place i had my injection. Could i go this long and just now being having issues from the shot? is there any possibility it could be from something else? i do have a desk job but like i said, i am very active. currently sitting here as i type i have a warm/burning sensation at the top of my left butt cheek and the discomfort radiates to my left thigh and left lower back. As a matter of fact, my whole left side of my back feels super tight. has anyone else experienced this?View Thread