I have paim in my left side of my waist. its been there a while i feel it a lot when i lay down?

Pain at waist: This would depend on various factors- are there other symptoms? Is left sided waist pain superficial (musculoskeletal pain); deeper (process of internal organs-etc. Pancreas, bowel or other abdominal process resulting in pressure on the internal lining of the gut, which can be very painful). If you continue to have this pain, schedule a physical examination with your primary care provider.