Unless you're getting any symptoms you don't need any treatment and it's nothing to worry about
+1
Your brain seems adequately perfused by your accounts, so there's little to cause concern.
Maybe they expect Lardy Blokes (sorry) to have a higher blood pressure.
Maybe your cycling/ime trialling has increased the capacitance of your circulatiion.
Anyway, your circulatory system seems to
work and it would be meddlesome to interfere.
If you were fainting/collapsing, the story would be different.
I do not think the pulse pressure is wide enough to suggest an incompetent aortic valve.
I take it you do not have syphilitic heart valve disease...