I have lower back pain and now one of my bones thats connected to my hip bones is sticking out next to the but

Hello I'm 24 years old and the last two years of my life has been complete hell. I had gastric byp surgery back in o4 lost 170 pounds. In March of 06 I had a tummy tuck done and then two weeks later I had emergency galbladder surgery done. since then I have chronic lower back pain. A MRI showed that I had a extra vertebra in my lumbar which means I have 6 and you should have 5 and it was fused together with my tailbone on both sides. Now one of my bones is sticking out higher than the other side. Its very sore for me to sit down due to the fact that my bone is extretmly sensitive. I have another MRI done on Tuesday because my doc says its not normal.. Im 24 years old and taking loratabs, muscle relaxors, ultrams, ambien to sleep, and steriods for imflammation.. I"M JUST 24!! I dont want to be on medicine...