Talk to General Physician on Body Pains

My father is diabetic which is continously controlled (he takes insulin) his blood pressure is also controlled, his creatinine level is usually around 1.4. He is having severe body pains mainly in legs, lower back, his feet also get slightly swollen occasionally. Due to higher creatinine level current doctor do not give pain relaxants(only panadol allowed) , is there a way to manage pain as it badly impacting daily life? Reports are attached.