Coasting:
If you really are a science-type fellow, I am surprised that you are not getting the data you need. I guess if you google around enough you will find some article that justifies your inactivity.
I would suggest you also try and find out what the standard of care is for males over age 50 in terms of routine physical examinations.
I am absolutely appalled at the medical treatment you have received. I wonder if it is the doctor who is negligent or have you been offered these tests but refused.
It's your life.
Good luck.
(Also, think of the peace of mind that would happen if you had good test results).
Do you really think this is a biased group in terms of what tests we recommend to you? Frankly, this is a highly intelligent group posting here.
Mel