(((((((((((((( Rain )))))))))))))))
This whole thing is so sad and hard to know of. My heart really goes out to you and the baby and your mom.
Has your mom always been like this? Is her behavior ramping up just recently? When was the last time she had a phsyical exam? I'm wondering if she has a physical ailment that may be contributing to her behavior. I could be way off base here, it's just a thought.

sabby