Some cancers, like my stomach cancer tumor, show no signs or indications for many years. Only when my cancer had grown to a 2” x 1.25” tumor and was friable and bleeding internally causing anemia was there any indication. Five months earlier I had a full checkup with no indications of problems, in fact my good health at age 70 was called outstanding.
God bless you. Keep on keeping on. I thank the Good Lord I’m still on two feet and breathing at 67.(with a pacemaker and a cardiac stent.)