AFP
https://pubmed.ncbi.nlm.nih.gov/?myncbishare=dukemlib&dr=abstract&otool=dukemlib&term=36521463
This is way more common than I had envisioned- 1 in 12 children suffers from anxiety disorder and 1 in 4 adolescents. It is emphasized that care must take place to differentiate this from normal fears and behaviors such as separation anxiety in infants and toddlers.