What health problems/conditions do keep undisclosed from your company? I'm sure many truckers (or newbies) do not have "excellent health".

If you are smart you will be honest with any and all health issues that you have, at least with the medical officer who does your DOT physical. The reason being is that if you hide something and later on down the road you are involved in an accident you could find yourself holding the entire bag.

What kind of issues are you concerned about? if you post a problem or condition, someone here might be able to relate and help out.