Mets in stomach

My husband has stage 4 with mets to his stomach and spleen and they say possibly a very tiny one in his liver. The tumors in his stomach cause him alot of pain. This past Friday he completed 5 radiation treatments to his stomach for pain control. The verdict is still out. Praying it helps. Does anyone else have mets to their stomach? How are they dealing with the pain and eating? My husband has lost 100lbs and has zero muscle tone left. It completely breaks my heart.