You are not alone, same here, im trying hard eith eitamins in my own, tired from doctors and tests, dont give up.
I don't know if this would make a difference but have your blood tests checked for Vitamin D3 deficiency?
Also might need more magnesium
I recommend seeing an internist, rheumatologist, or immunologist for a complete blood work up to check for inflammatory illnesses and infections. Keep track of your medical records, including all test results to take with you to future doctors or specialists - you are your best advocate to get to the bottom of this and feel better. Take care!