Yes. The dog's tail might be broken. I would advise you to go to the vet.
Because you might have done something that really hurts like you pulled on it realy tight! Or cause it happens by itself!
it hurts so bad
it hurts some times but not always
the very first time it hurts because me, i have had 14 teeth pulled for braces and it hurts some of the times.
You could have strained or pulled a muscle.
it hurts
it hurts
It hurts.
it hurts
It hurts .
It hurts
the muscle you pulled hurts and decreases the way your body moves.