My husband has stage 4 cancer that has metasisized to his spine c7, lungs, lining of his brain, mandible and maxilla bones. Original cancer was found in sinus cavity, S.N.U.C., which was surgically removed, followed with radiation and chem. His arms twitch, is that from the tumor on the spine. This is awful to say, unfortunately, he has a fowl odor,....is that the cancer?