Is this a normal Withdrawal symptom?

I keep a daily journal for quitting PMO and will just paste from there. Day 39 While asleep I woke to a loud snap or whipping sound. It felt like someone whipped me with a belt buckle on the top of my head. Almost like something cracked or popped in my head. I was concious but decided to remain still, I was really tired. I was laying on my right side, my entire body began rocking slowly back and forth, wtf?!?! So I continued laying there rocking for about 10 mins till I fell back asleep. I had a scary dream, in which my right testicle was in terrible pain from not ejaculating. When I woke I instantly noticed how clear my head was my mind feels really sharp. Also I do have a light headache. Also while I lay here in bed I suddenly have amazing morning wood, probably like 85%. Which is much stronger than before, it only lasted a minute. Wasn't thinking about anything sexual at all.

Is the rocking or loud crack in my head normal withdrawal?