What does the MD say about her not having teeth, what does the dentist say, did the dentist xray her? What's the results from the genetic workup? Something is going on with all of this along with not talking, walking. I'm a RN, all of this is related. You need to get her in PT and OT through your husband's insurance. Once a month PT isn't enough.
Your health insurance through your husband's work, you have therapy benefits, so have your doctor can submit it for you so she can get the free one once a month but she also can use her health insurance for Pt, OT and Speech therapy. She really needs 3x a week. I'm a RN so I know you have these benefits. 3x a week is what she really needs. ❤ as for the oatmeal just put it with milk. I'm sure you're going to give her milk.
I have some questions that you may be able to address in a video. I know yopu finished potty training Porter, but have you had any issues afterwards. Mine is getting to that age soon. Do they pee in places that are not the potty on purpose as I have heard that they might do it to be funny or becvause it is fun. Or try and pee outside, etc.