The school IEP process will include a psych eval, if you ask for one, which, in this case, should be easy enough, simply by listing the hypersensitivities, rigidity, and anxiety on the letter requesting evaluation for special education eligibility. Depending on the way your district writes consent forms, it may have an item labeled "psychological assessment", which encompasses cognitive, social-emotional, and behavioral (including attention) assessment.

...pronounced like the long vowel and first letter of the alphabet...