I think i might have cancer but im afraid to to tell my mom so i told her i wanted to do a regular checkup would that be enough to tell if i do? im 18

Relax,Talk to Doc: Why do you think you have cancer? When you go in for your check-up speak openly with your doctor about your concerns (parent should stay in the waiting room or at home). After full review of symptoms and a physical exam your doctor will better able to direct you -whether you need lab studies or if a visit to a mental health professional to deal with anxiety issues.