Amnesia/hypno from Half is Easy?

So, walking up the stairs from the basement to my office today and my legs are really aching and I couldn’t think why. It wasn’t until I got to the top of the 89 stairs that I realised I’d squeezed in Half is Easy yesterday before taking my son to his race. And done it on 100% of my last 4DP settings despite lacking training recently.

Does Half is Easy have some hypnotic training or something that makes you forget you’ve done it so you are not meant to feel the pain? When I checked my activity history it tells me I’ve done it 22 times and I don’t remember doing so many. Nobody could be so stupid as to knowingly do it 22 times?