I'm worried that the asymmetrical lip corner filler might make my facial expressions look unnatural.

I am bothered by the fact that the height of the corners of my mouth is slightly different every time I take a picture.
Especially when expressionless, one side looks more droopy, so it seems like the impression is tired.

It looks worse in photos than in the mirror, so these days I get self-conscious even about smiling photos.
I am wondering if this can be naturally improved with lip corner fillers or Botox.

I wonder if it might look awkward if the effect is too excessive.
I would also like to know if the facial expression becomes unnatural.