Amoxicillin ...please help!!!

Amber

My daughter was diagnosed with pneumonia and has been taking amoxicillin for 2 days now and she has became the most aggressive and angry person ! One minute she’s happy , then she’s kicking and screaming and throwing stuff for no reason. And she’s hitting herself ...I’m starting to get really concerned because she wasn’t like this before the medicine. She normally throws tantrums , but right now it’s outta control ! Has anyone had this happen to their kids while on Amoxicillin?