<s>[INST] I have severe low back pain on my left side and my abdomen is swollen and also hurts. What could it be? I m in severe pain. I cannot stand up straight or find a position where the pain will go away. [/INST] Hi welcome to healtcare magic As per your condition, you to be clinically evaluated.. ultra sound scanning of abdomen is needed to find the cause... consult a general surgeon.. </s>