Hav they 100% given up on potty training? She probably could have been mostly potty trained years ago (just wear a pull up to bed) if they had followed through with it, and had her on a schedule (which Is probably what they do at school) They should use a timer that goes off every like 45 minutes. While timer is going off say (in a positive tone) that sound means it’s time to go potty. It has to be a regular, long term thing. Also bring her to the whenever she signs “potty” Idk if a sticker chart would work for her?or If she’d even understand. Did that with my niece and nephew. 1 sticker for pee, 2 for poop. So many stickers = a small prize. Maybe having a chart with 10 boxes across, the end box having a picture of The prize. (Obviously would be food related. We know she’s too old and uninterested in sensory toys.. ... ..) and food is life for Abbie. I wonder how different she’d be if someone like Brandy was her Mom. She probably wouldn’t have regressed soo much. I keep thinking of the video of her when she was much younger, getting her own water from the fridge. She looks like a “normal” strong/sturdy kid. Now her neck and back look soo bad and painful. Probably from her aggressive rocking. Wonder if she’s ever had whiplash.