Probably nothing
https://www.mayoclinic.org/diseases-conditions/grand-mal-seizure/symptoms-causes/syc-20363458
Tonic-clonic (grand mal) seizure - Symptoms and causes - Mayo Clinic
Dec 12, 2023 … A tonic-clonic seizure, previously known as a grand mal seizure, causes a loss of consciousness and violent muscle contractions.
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https://www.hopkinsmedicine.org/health/conditions-and-diseases/epilepsy/types-of-seizures
Types of Seizures | Johns Hopkins Medicine
Seizures symptoms vary and can include a sudden change in awareness or full loss of consciousness, unusual sensations or thoughts, involuntary twitching or …
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https://academic.oup.com/brain/article/132/10/2630/329792
Symptoms and signs of syncope: a review of the link between …
Complete loss of consciousness occurs with the 'turning up' of the eyeballs. Profound cerebral hypoperfusion may be accompanied by myoclonic jerks. blood …