Interesting read, I took notice as you've been experience a lot of wet dreams too, I've come to realise (for me anyway and hopefully everyone) they are a good sign.
I had one 2 weeks back and 2 days later I was able to have a full day of sex with my gf and had a lot of arousal for her for around a week but experiencing another bout of PIED.
However, in the last week I've had 3! (All of them involving P fetishes). However, I don't feel this is setting me back, yesterday I had arousal for my partner and today I am noticing I am able to get a semi erection just touching myself. This wasn't possible for me 2/3 weeks back.
Keep up the good work mate