DD1 is 2 and has suspected ASD. Every sound my newborn makes my toddler screams at the top of her voice continuously. This carries on day and night. I’ve tried everything. I’ve also tried staying with my newborn downstairs on a night while my toddler is asleep upstairs and she can still hear my newborn cry etc and she just screams non stop. I’m desperate for some advice if anyone has any experience!!!