“… 5 , 41 , 42 Third, many patients with CVS, migraines, seizures, or panic attacks experience symptom onset dependent upon a circadian pattern. 2 , 7 , 25 , 43 , 44 , 45 In particular, CVS attacks, migraines, and frontal seizures may cluster in the early AM hours. 2 , 7 , 45 , 46 Fourth, prior exposure to adverse or traumatic life events is linked with increased likelihood of developing CVS, 1 , 2 migraine, 47 epilepsy, 48 or panic disorder.…”