Why is my character tired when she wakes up?

For some reason whenever I begin playing in my town, my character walks out the door to her house, but then this weird animation plays. She does this arm motion like she’s fanning her forehead with her hand while sweat drops fall from her head like she just got done doing a hard day’s work, or as if it was hot outside.
Is she tired? Am I doing something wrong? Why does this animation always play when I boot up my game? Does it effect my gameplay at all?