>>82106072 (OP)
Kind of makes sense, mindset is extremely powerful and like he said phantom limb pain exists. The brain also does exactly this when it comes to stretching, even more especially the sciatica nerve. It prevents you from bending in ways that your brain thinks your body can't handle, which often is true, but it also does not "update" until you prove that you can indeed safely bend that way and then it lets you do it effortlessly.
I wouldn't discredit this.