Hopestronaut

Well, the good and bad thing about penis is the it is genetically pre-shaped(i dont know if it is a word). And except you take risky surgical procedure, it is fixed. So in ur case, the most likely situation is that it is your change in emotional or perception or sometimes, it just shrinks a bit and will be normal a few days later. But if you are scared, you should seek medical advice, not my cliche advice :)

One day I had ejaculation at night during sleep, and a hard-on after many weeks. Is this a sign of a recovery?

Keep going, Trust God and exercise. Yes you are recovering well but keep going not for 90 days but it's a lifestyle and it's for the better.

Welcome to nofap :) Wet dreams are a sign of recovery for some. Don’t worry about them.