The seizure symptoms of PS are frequently mistaken as non-epileptic conditions, such as fainting, migraine, cyclic vomiting syndrome, motion sickness, sleep disorder, or stomach
[epilepsy.com]
Cyclic Vomiting Syndrome in Children.
[pubmed.ncbi.nlm.nih.gov]
An explanation for this is that children are susceptible to autonomic disorders as illustrated by the cyclic vomiting syndrome, which is a nonepileptic condition specific
[en.wikipedia.org]