I am very jumpy and hypervigilant. Sometimes I start shaking when I get anxious which can be embarressing.
The good thing about hypervigilance is being able to catch items that fall off tables very quickly. Also I stopped my son running in front of a bus. The arm went out and grabbed him back really quickly. I saw the bus, saw him and did not think just acted. He saw the floating lights on the top of the bus, he was small did not realise the danger, my partner and my mother froze with fear. He cried as I grabbed him pretty hard but he was alive. Was amazing how you don't think, your brain just reacts.
Also once an ash tray fell from a table, I reached out and my friend reached out and we caught it together! Was bizarre but a nice experience.
I try and see the positive from the negative, it is how I cope. The changes that happen are for survival after all :)