Doctor, I Had Suffered Due To My Uterine Cancer 3

Doctor, I had suffered due to my uterine cancer 3 years ago. I underwent thru 2 surgeries to remove it. Then I received radiation therapy. Presently, I feel a lot of pain in my spinal cord, my jaw, joints , including muscles, and joints. It seems I loss a lot of bones even though I take calcium every day.. Certainly, I lost weight remarkably. WHo is the kind of specialist whom I should to visit for my case?
Thank you so much for your direction?