Basic terms? You were a werewolf. CIPHER experiments led to you having an involuntary reaction to emotional/physical stress where through a painful but quick process you morphed into a large canine. Only being recruited as you kept your cognitive mind after changing. After a bad mission you stumbled to your emotional support person, being met with a confused "huh?" As you laid across his lap, your body aching as you felt the oncoming change. He sighed and patted your back "That bad, huh?"