I have pain in my left hip that makes it difficult for me to raise my leg to go up steps or raise to put my leg into pants. Also, have lower back pain when standing for any length of time. It does not seem to be in a joint but in my behind, not like a bruise but deeper. I have had bursitis before but it was in my right hip in a different place. What could this be? It has been going on for quite some time now, maybe a couple of months.