I experience the exact same that you describe. I am far more self concious then I used to be and find myself looking in the mirror far more out of insecurity.
It's almost like ocd about appearance and it seems to tie in with the anxiety ( as I get social anxiety too)
I always feel self concious and I get weird insecurities - there is always some aspect I am worrying about.
I feel like people are looking at me and when I talk to people ( even people I know) I feel as though they are thinking I am weird, or that I am fake and I am projected my own negative self-criticism onto them as if they are thinking.
I never noticed this until I developed adrenal fatigue.