The fifth doctor I saw tried prednisone (unsuccessfully) and ordered a knee MRI. They found I have bone marrow edema, consistent with calcineurin inhibitor pain syndrome (CIPS). I’m already on a low dose of Tacrolimus, so right now they’re managing the pain with Gabapentin. I’m up to 300 mg at night, but 100 mg is enough during the day. My symptoms are similar to yours. It started in my knees and hips, and within a few months all my joints were affected. If I sit too long I can barely stand up. I’ve found stretching and low impact exercises help immensely. If I don’t stay on top of it my muscles tighten and the pain is worse. At least with the meds I’m sleeping! Thank you for the well wishes. I hope you are better soon. Does the gabapentin help the numbness? I know it’s used to treat neuropathy.