I think there are people for whom discipline is not the pain of avoidance but the reward of learning/doing. I think what you're describing is similar to this:

I think there are people for whom discipline is not the pain of avoidance but the reward of learning/doing. I think what you're describing is similar to this: https://www.physio-pedia.com/Fear_Avoidance_Model https://www.physio-pedia.com/Fear_Avoidance_Model and is likely related to this: https://elifesciences.org/articles/74149 https://elifesciences.org/articles/74149. Our brains lose the ability accurately understand the level of pain the task is going to create. The feedback loop is broken.