I found a name for your condition which will help a lot:
"Post ogasmic Illness Syndrome or POIS"
Google this term and you get thousands of hits so it is a well known problem.
I've read through a few links to find that POIS can be related to watching too much p 0 r n, then playing with yourself, spanking the monkey, which basically rewires the brain and causes unpredictable results, & may include not even responding to a women any more.
If this is your case, there is help available at NOFAP.COM.