Preteen’s aversion to looking in mirrors

Over the last couple of years, my 11 yr old daughter with ASD has come to hate having her picture taken because she “doesn’t like looking at herself”. Recently she has started to completely avoid looking at herself in mirrors. She was diagnosed with ASD 4 years ago and is high functioning, but she started middle school this year and is on the cusp of puberty. I know this is a fraught time and I worry this is a symptom of low self esteem or the start of body dysmorphia. Does anyone have any experience with this?