Safe Kids reports these hard facts surrounding button battery ingestion:
Hyperarousal is a characteristic of inappropriately and chronically aroused “fight or flight” defense mechanisms. The person is seemingly on permanent alert for threats of danger. Symptoms of hyperarousal include: exaggerated startle responses, anxiety attacks, irritability, outbursts of anger or rage, aggressive behavior, difficulty concentrating, hypervigilence, difficulty falling asleep or staying asleep, or physiological reactions upon exposure to situations that symbolize or resemble an aspect of the traumatic experience (eg. elevated pulse or sweat during a pelvic exam, or upon hearing a vacuum pump sound.)
SOURCES: Mary Ellen Handy, student, New Jersey. Parry Aftab, cyberspace security and privacy lawyer; executive director, . John Shehan, program manager, CyberTipline, National Center for Missing and Exploited Children, Alexandria, VA. : "Internet Safety News: Tips to Help When Your Child is Bullied Online," "What Is CyberBullying?" and "What is the best filtering software?" : "How Do I Remove My Child's Profile from ?" National Center for Missing and Exploited Children: "What is the CyberTipline?"