Thank you so much for writing. You are right to be concerned. I am too. Your little girl is showing you that she needs help. Please don’t be hard on yourself for not noticing before now. It is not unusual for problems to show up when kids start school. Until then, parents often get used to their children’s personality and quirks.
Please start with your pediatrician. Share your letter as a way to summarize the problem. It could be, for example, that your daughter has an undiagnosed hearing problem. If the pediatrician sees nothing medically wrong, she/he can make a referral to a child therapist to do an evaluation. I can’t venture a guess about a diagnosis on the basis of your letter but I do want to assure you that an evaluation will help you understand what is going on and how best to help your child.
Please don’t wait to get those appointments. Early intervention for most problems makes a huge difference.
I wish you all well.