My DD is 11 and has adhd and awaiting tests for austim. Her meltdowns are getting worse. She is scaring her younger siblings with the screaming and physical violence to me. Her brother is only 2 and is copying her behaviour back to her. When she's trying to hit me he tries to hit her. When she's screaming he has such a scared look on his face and has nightmares that night. The baby 8 months has no clue what's going but cries.
Any ideas on what to do?