Don't even worry bout the next two - the worst is already over! Yes, been there, done that. For me the worst part about the last two appointments was my jaw was kinda sore afterwards - but that's only because when I open my mouth wide, I dislocate my jaw - even when yawning - so I know that soreness was peculiar to me, as it was the back tooth, so I had to "open wide" ... sigh. Dislocate your jaw enough in a day and it will be sore the next day!