Maybe one of the guys you have read of is me.
I have sensitivity problems but i strongly believe it has come this way because I overdid it.
I used a Penismaster with way too much force…..
And apart from this: anxiety and some psychological problems about my size which maybe decreases my feelings so I think it is not normal to lose sensitivity because of PE maybe only a little bit.
But i feel that the sensitivity will come back and after a break of a month and a half it feels better now.
I think that jelqing can improve your sensitivity if done the right way.
But just my thoughts i dont KNOW it for sure.