100%. A minor low doesn't cause this reaction from me, but at a certain point the survival instinct kicks into gear so heavily there's almost nothing you can do until your BG starts to rise, even when you know you've overdone it.

It's the real life experience of this Frog and Toad meme: https://i.imgur.com/YdSSscE.png

And of course, those are both your brain. The self-aware rational parts just aren't always in charge (heck, I'm not sure if they're even in charge most of the time, no matter what they would like to think).

Eh, don't feel bad about the inevitable. My conscious self knows well to just count the carbs when I'm too low to behave. At least then I'll know how much insulin to dose when the curve ticks upwards again.