This is not for what you have had or been treated for, but things that your family or parents had and died and you are concern about it.
My grandmother died of alzheimers. I am fine so far, but find I am doing some things I am concerned about. I do what all people do, go to the kitchen for something and when I get there, forgot what I was looking for. But I have found that I put stuff where it does not go. The other day, I found a can of peas in the frig...

My real father and son both died of cancer.
I get my yearly chest xray (cause I smoked 40 years), and my pap smear and mamo. I get a complete lab work done once a year and they turn out great. But what about small cancer tumors, etc. that cannot be detected by those exams and tests?