Er. I had fallen off thread again. Looking that is literally shit. What a horrible, manipulative, narcy COW your MIL is. And I say that as someone who spent years as the DIL to the most evil woman in the home counties. Put it in the bin and never talk to her again. My DD had hearing loss until she was about 5 (undiagnosed / mistreated glue ear) which was resolved, but we did most of the same things, and she caught up again very quickly once it was sorted.
Sorry for the baby bombs too. I too have that brother - leaps head first in to a bucket of shit, blames everyone else and then waits for the parents to bail him out, mop him up and pay for the damage. Still, at nearly 40. I refused to have him at our wedding and DPs were furious with me, until his latest outburst where they basically said ah, we get it. Him and his partner don't have kids, so no baby bombs from them but I probably would have committed hari kari if there had been while TTC.