It sounds like you have a robust plan there Flyinhi.
Hypertension doesn't seem to twitch the authorities too much, which is a good job, as people like me make a good living bombarding healthy people with chemicals in an attempt to keep them healthy.
What's different about your case is your age, and the threshold for looking for sinister causes, for example, pheochromcytoma, should be lower in someone your age. This is probably more important than looking for end organ damage in your case.
It does look like, in your case, there may have been a rush into nudging you into a protocol designed for managing this long term condition, and I'm wondering if your doc has been a little enthusiastic into placing you on this journey.
It sounds like you are seeking "undiagnosis" and the plan seems to be going well. Have a look at my earlier
NICE link which explains the use of 24 hour ambulatory bp measurement in reaching a diagnosis. (Or undiagnosis.)
It sounds like the "flushing" incidents can be easilly unravelled by a listening clinician.
Let us know how you get on
