Anna Hatch on Instagram: "My friend watched her son thriving. He babbled, made eye contact, and hit every milestone. Then came his routine 12-month vaccines. That’s when everything changed. Within hours, his body burned with a 104-degree fever. It lasted seven days. He screamed endlessly. He stared off. He refused to eat. His body was on fire, and this mom knew deep down something was terribly wrong. Then came the regression. His words disappeared. The eye contact vanished. He stopped responding