Hi there, 21 year old female Who has been experiencing chronic lower back pain for quite some time now. Specifically in my lower left dimple. This has not been a result of a sport or other strain injury. I ve been to chiropractic care which helped other issues, but never this one. The only temporary relief I can find is to crack my back, it seems like sometimes it can lock in this area and popping it puts it back in place. It mostly hurts when I lie down or sit in any position. It goes through periods of times where it hurts 85% of the day. I have Just recently discovered a lump on the lower left dimple where the pain occurs. It seems to be in a line formation as if a protruding muscle. Because I can feel the same contour on my right side, but the left is much pronounced and sticking out. Any idea what this could be? I was thinking perhaps some form of sacro illiac joint dysfunction, many of my symptoms Match up, but I am uncertain. Thanks so much, Ashley