No expert but after I got divorced I found myself unable to come with a woman (although I seem to remember masturbation was OK). After a while I got going again as normal.

9 years later got divorced again and - guess what - I couldn't come with a woman AGAIN. I met a tidy and hungry Brazilian who took full advantage of the situation and was very disappointed when it all started to work as normal again.

Sounds as if it was all in the mind, doesn't it?