A person I knew was 46, started having blood clots, cancer finally diagnosed as colon, but there was no cancer ever found in the colon. The biopsies just always came up as having had metastasized from the colon.. It spread everywhere, final analysis, way after mets, they finally found the original cancer hiding deep in the small intestines. That was very difficult for the drs. to find. excellent cancer dx and tx really haven’t improved much from the 1940s. If drs would listen to every little word a pt says in their initial h&p, things might be different, but time is of the essence and I am so sorry they cannot find your site of origin. Hang in there. Don’t blame God. He doesn’t pick and choose. He doesn’t let this happen. It is what it is, sad, sad, sad…our priorities in this country are backwards. Pay the athletes/celebs $$$$, spend little on r&d. DO what you can to help make a change. God bless you. This earthly life is so very short and is only a temporary station.