Death grip problem

Sounds like classic death grip. The only way to cure it is to not masturbate for a good 90 days maybe much longer.

 

The sensation will come back but it will take time.

 

Hand dry masturbation is the worst. I used to do that and it made me bleed. If you must masturbate, be sure to use lube. More helpful. Leave it alone and let it heal.

 

If you are lucky, you may feel already a big difference after a few weeks. But don´t "edge", no masturbation at all and let it heal. I was quite numb too, but after a few streaks my sexual disfunction was healed. I´m very sensitive now. So there is at least hope, but as marino wrote, depending on the individual it may take much longer than a few weeks.

 

Go meet attractive girls and that will rewire your arousal system in the brain. Give it time. It will heal

 

OK, then maybe you damaged it physically, I would see another urologist.
I had very different levels of sensitivity in my life - when I was so busy I could not masturbate I was sensitive but most of the time was numb due to deathgrip.
But you have dark numb areas, that doesn´t sound good. Maybe a longer time without any masturbation would help, but for the case it is permanent damage, I would see another urologist - in any case don´t fap, would make it only worse.

 

You really did a number on yourself

 

For me, I cum fast during oral. You really need to heal. It takes time. You can do it