AlonzoToo-
That is a BAD idea. If there is one universal truth in the whole arena of anxiety, it is that the method of feeling better by never having to face a bad diagnosis only EXACERBATES your anxiety, and will ultimately overcome you. You cannot erase the doubt this way, and any future twinge or percevied abnormality is going to ressurect fears and anxiousness. Your fear of the unknown has already placed you directly in the flight or fight syndrome of anxiety (deep down, you are fleeing the "bad" test results and are using that to suppress anxiety)...this wears on you, and I suspect you are not similarly equipped to control this long term as someone like Alonzo is, who is not at all worried that a negative result could develop - just doesn't need the test to confirm what he already knows.
I don't want to pour cold water on things, but to truly overcome this cycle you are in, you have to focus on doing what it takes to get yourself in a place where you are convinced that all is normal and that there is NOTHING to be worried about, including negative test results. I hope you find the courage to confront the infintesimally small liklihood that you might get a negative result, and give yourself the peace of mind that comes from not having the unknown to worry about.
JG