Heyy, I just fed my first ball python on friday.
he ate some of his substrate (aspen shavings) and had some stuck in his mouth and I managed to gently get those out.

Now today, I was watching him and he keeps opening his mouth. not like a yawn, he just opens his mouth on the left side and on the right side (if that makes sense)
Like, he stretches down one side of his jaw and then the other.

Is this normal, and if not what could it be or how could I fix it?