Alright here's a new post, this involves either the kidney or the QL muscle. The difference between kidney pain due to a stone and such or just muscle stiffness/spasm. If it's a QL (Quadratus lumborum) problem in the back, you will feel it in your lumbar vertebra, or at the floating ribs or down on the pelvis. Also tenderness in your butt. The dull ache will be closer to the vertebra besides on it. The kidneys do sit in far, you have to go through the tissues first.
If it's a kidney problem then you will feel more inflammation in between the ribs or towards the outside more too. Flank pain or labor pains. It'll still spasm in there deep as it's trying to exit maybe. In my case my kidney was still swollen, which was causing my tenderness in the back.. You'll pee out blood, which looks brown in your pee, it'll feel like a pinch, and when you pee it should go away. Things like that. Always ask questions on what it is! Look at these pictures and decipher the difference. I've had the kidney stone pain now so I can tell the difference. If it's a dull ache or stiffness, it's the QL and soft tissues. The kidney causes labor pains in the sides or down your groin rather than stiffness or achiness..
The muscle treatments can't be a moist heating pad, massage & stretching over to the side or on a ball. Kidney treatments are accordingly with your doctor. Avoid Apple juice, cranberry, orange or grape juice, anything acidic. Drink water, lemonade or anything alkaline. Maybe berry juice.. Avoid excess animal & dairy protein. Moderation. Look up kidney flushes or buy some dandelion root. Becareful with meds being mixed.