Mental health is something that we all struggle with, and there are so many different variations of mental health that affect us at different stages. I'm so glad we've got this forum to write down what's happening to us.
One thing to consider is that photographic lenses also create distortion. A 100mm lens is supposed to be the most "accurate" in terms of proportions, but only if it's used a couple of meters away. The lenses on our phones are wide angle lenses which do distort proportions, and this changes with the distance to the lens as well.
I think the only real way to tell would be to measure your face and then measure again after a period of time.
Personally I've never thought you look angry or tired in your photos, I guess it all comes down to perception.
RE: Confused or is it just me ?