Over the last three days my boyfriend has developed a constant pain in his left lower side. He said that he noticed it after he had finished eating three days ago and the pain has only grown worse. We don't know if it is an intestinal problem, muscular or what it could be. He complains that it hurts to move and the pain gets worse when he urinates. Any ideas of what it could be? Any input would be greatly appriecated by the both of us. We are going to make a doctor appointment when the offices open after christmas. Thank you.