You didn't mention your age. In my case similar issues were chalked up as age-related and don't worry about it. However when it comes to my junk down there, don't worry didn't help my ED frustrations.
I opted for a penal implant last March. No more ED, medicare and my insurance paid in full.
My Urologist explained that the implant causes loss of most of the sensation in the penis. Did you find that to be the case?