Secret #2

con·vul·sion /kənˈvʌlʃən/ Pronunciation Key - Show Spelled Pronunciation[kuhn-vuhl-shuhn] Pronunciation Key - Show IPA Pronunciation
–noun
1. contortion of the body caused by violent, involuntary muscular contractions of the extremities, trunk, and head.
2. violent agitation or disturbance; commotion.
3. an outburst of great, uncontrollable laughter.

- convulsion

A severe, often violent involuntary contraction of the muscles. Convulsions may be caused by high fevers or poisoning and often accompany such diseases such as epilepsy.