my uncle who most definitely has undiagnosed adhd was diagnosed with lymphoma 20 years ago he simply thought he had a hernia that he put off getting treated only to find out he had cancer initially they gave him slim odds of survival so he signed up for a phase 2 or 3 trial for an experimental treatment that had him living in the hospital for a month in an isolation chamber no less they removed marrow to grow his white blood cells that they then reprogrammed to attack the lymphoma and it worked he survived and the cancer never came back   so if my uncles story had a happy ending yours can too good luck and ill pray for you