How long does it take to recovery from throat cancer stage 4. Had 35 radiation treatments, 6 rounds of chemotherapy. Finished may 4 2011.Have peg tube ,cannot eat solid food.bitter tasting like metal. Does radiation still work for a while when treatment is done.still feel a little lump on neck, will it go away.age 58 male height 5"11 weight 180. Feel very weak ,