I just drifted off for a quick nap and I bit my tongue in my sleep again. This time it was really bad and it was the tip of my tongue. I actually caused it to bleed. Now I am afraid to go to sleep. I know this can be a symptom of ALS and this is the third time that it has happened. Has this happened to anyone else here? It's not like anxiety can be causing it because I'm asleep when it happens. I'm afraid that my jaw is having spasms and is slamming down on my tongue...yet another symptom.