Uncontrollable Urges

Since Killua turned 3, he started getting these urges. Urges to jump off high places, urges to sink a razor into his skin, urges to drink toxic substances, and more. As a child he had to be kept on a tight leash because he kept 'accidently hurting himself'. Falling into ditches, cutting himself on sharp edges, trying to drink thinks like dish soap and eat things like random pills he always found lying around on high surfaces. It wasn't until he turned 12 that his parents realized it wasn't just simple curiosity, but something else entirely.