You're reassuringly average.
The 24hr bp recording seems a good idea in principle, but unfortunately, we haven't yet got a reliable algorythym to translate it into clinical use.
It sounds like your doc is trying to avoid putting you on treatment (which is usually life long), whilst at the same time helping you pass the medical.
I'd advise cutting down other risk factors for arterial disease, and it's probably a good idea to get it checked yearly.
Nothing I've said replaces the advice of your ame. Good luck, keep us informed.