<s>[INST] hi, I have really bad lower back pain.  it is difficult to move when I lie down for any length of time. and when I try to get up.  it hurts when I walk and is normally on the left side above my left buttock.  I am 49 and overweight for my height I am also fairly buxom.  I am otherwise healthy and walk my dog regularly for at least an hour and a half a day, the back pain is getting worse. [/INST] Hello, Thanks for the query to Chat Doctor. Forum. Knee joints and hip joints are weight-bearing joints of our body. They are made to bear a stipulated weight, if weight is more than they have to suffer and hurt. Back pain is also due to over weight as you mentioned your query. For this pain please get in X-ray of lumbosacral region. C T scan will also help in evaluation of backbones (lumber as well sacrum vertebrae). Consult an orthopaedician and get his opinion. Mere walking with a dog with slow pace will not help in any way. Hope I have answered your question. If further any question I will help. Good luck.  </s>