Help! I am 22 yrs old and have had chronic back pain for 3 years now. My pain was diagnosed as Lordosis and slightly uneven hips. However, they were unable to diagnose the worse part. Anytime I lay down my back starts to hurt, however, whenever I try to sit up I feel stabbing pains where my sacroiliac joints are. It is so bad I have to turn on my side to sit up. Anyone know what is wrong? Thanks!