Woke up this morning to scratches all over my neck and chest

Woke up this morning to go to the bathroom and felt a pain on my neck. Go to touch it and hurt even worse. Click the light on to find these raised scratches all over my upper body. All day I've been concerned with how I did this. I mean they are deep enough I feel like I would have woken up. As the day went on I feel like I remember being itchy in my sleep. But Jesus Idk how I actually did this to myself. The picture does not do justice. It's pretty bad to be done in my sleep without me waking. This picture was just taken, I've been awake since 7am

Woke up this morning to go to the bathroom and felt a pain on my neck. Go to touch it and hurt even worse. Click the light on to find these raised scratches all over my upper body. All day I've been concerned with how I did this. I mean they are deep enough I feel like I would have woken up. As the day went on I feel like I remember being itchy in my sleep. But Jesus Idk how I actually did this to myself. The picture does not do justice. It's pretty bad to be done in my sleep without me waking. This picture was just taken, I've been awake since 7am