Sounds like her son is autistic. He has a lot of developmental delays. She talks about it in her new video and how it has made her not want to post. She seems in denial and doesn't want to get him diagnosed. If she did he'd be able to get more targeted help to aid with his development.Mary revamped her channel when she first announced her second pregnancy, I’m sure she said she wanted to post weekly or so but instead has been very very quiet.