May be a clinical diagnosis
Consider standard<unk>  workup
Always check glucose
Lactic acid may be able to differentiate from true generalized tonic-clonic<unk> 
Consider obtaining a drug screen (and a pregnancy test in women)
If unsure, an urgent neuro consult with EEG can determine the diagnosis
Always check glucose
Lactic acid may be able to differentiate from true generalized tonic-clonic<unk>
Psychogenic nonepileptic seizure
Epileptic seizure
Febrile seizure
First-time seizure
Seizure with known seizure disorder
Alcohol withdrawal seizures
Status epilepticus
Transient ischemic attack