Where Does It Hurt? Probing American health care. Illustration: Olivier Heiligers The signs of pediatric cannabis poisoning that parents usually notice first are sleepiness and strangeness. Their child is acting off , parents say. Their kid seems slowed, confused. Some of them vomit. Some can’t stay awake, or sit up, or support their own weight when trying to walk. Some kids and teens skip these relatively benign symptoms and sink into psychosis, ranting and screaming and fighting paranoid