Advice wanted

Hi everyone ☺️ I’m a teacher and I think I might have a student who could have ARFID. Obviously, I can’t diagnose and I’ll be honest I’d never heard of it until I started doing a bit a research. I feel like it would be worth seeking medical advice for this. However, I would like to know if ARFID ever stopped you/became a mental block for doing things? For example, this student really struggles to get through the day and enter into every lesson but isn’t sure as to why. I’ve tried everything lesson wise to help but I can’t help think that the difficulties with fuelling her body, leading to anxiety is what’s stopping her.

Any advice would be appreciated as I really want to support this student and any others who I come across. What is a good strategy to help motivate/reduce the anxiety?