A regression is not normal. A child should never ever move backwards that is not health or development that is toxicity. I’ve had boots on the ground for years speaking to thousands of parents with the SAME STORY. After the wellness visit their child regressed. Stopped talking or speech delayed Developed eczema Lost eye contact Stopped sleeping well High pitched screams Sensory issues Constant ear infections Self Harm Tippy toe walking Hand flapping All symptoms of toxicity and harm to the brain