What Causes Grinding And Increasing Pain In Shoulders?

My shoulder grinds every time I move it and has become increasingly painful. It now also hurts in my shoulder to run. I ve had 4 months of physical therapy and have been givin 800mg ibuprofen which doesn t help at all, traumadol flexiril and lortabs have no helped with the pain or grinding either. I m not sure if this is related but I ve also had jaw hip and knee pain. And recently I ve have ulcers and a hernia and appendicitis all within this last year. Nothing seems to help and it s only getting worse. I ve had xrays and an MRI taken and no one seems to know what the problem is or how to fix it.