Trouble feeling sexual touches?

Does anyone else have trouble feeling the touch of their partner on your genitals? I keep experiencing that when my partner touches my penis, i can barely feel it. Ive been able to get a sturdy enough erection to try and get a blowjob a few times but I can barely feel it. I know its being touches but its like a whisper from far away. When I touch myself, it feels okay but I can feel my hand as well so my brain knows. I just have a feeling this is tied into my erection issues and wanted to see if others have experienced this.