Physical Schmysical

I went to see a doctor today for a bi-annual (by which I mean once every two years) physical. I wouldn't go see a doctor at all if I didn't need to get my prescriptions renewed. I consider it a necessary evil.
The doctor was fine. He didn't pressure me to have a colonoscopy or PSA test. My blood pressure was high, but it's always high when I go to the doctor. (That's why I measure and record my BP at home for two weeks prior to seeing a doctor so he can see that, under normal circumstances, each value is 10 points lower.)
I mention the PSA test because the last time I had a physical, in '05, I had a PSA test which indicated my PSA level was out of tolerance. PANIC!! But when my PSA level was checked again 5 weeks later, it was just fine. CEASE PANICING! I thought, "what a crock!"
My prostate is slightly enlarged but not alarmingly so. Apparently it's an "age-appropriate" enlargement. My dad was diagnosed with prostate cancer when he was 72-ish. He decided NOT to have surgery and to let the chips fall where they may. By the time he was 76-ish, there was no sign of cancer in his prostate. Why am I not surprised.
My blood test indicated that my "bad" cholesterol was a bit high, but my "good" cholesterol was so good that it canceled the negative value of the "bad" cholesterol. I asked the doctor how my good cholesterol would be so good? He said, "Genetics." Gee, thanks mom and dad. I thought it might be the brand of peanut butter I gobble each day.
I left feeling pretty good about receiving a generally clean bill of health, but I can't get over feeling that the diagnosis was based largely on a lucky game of blood-test-roulette.