Hello
Grams 
I join
Faith ~ welcoming you our group, I'm glad you've reached out for support, it is critical. There are grandparents here in similar situations and parents, who understand, you are not alone.
It sounds like your son is keeping you up to date and that is good, despite the pain and heartbreak.
Is your son reaching out for support, therapy can help him navigate his way through, if not it can be the greatest gift. For you too.

How old are your lovely grandchildren?
WDx
