dear Shortie, thanks for posting this very concerning comment.
I too am worried for your daughter and by being in an unhappy marriage is only making her worse.
If her husband is very self orientated, he is most likely going to object, but then your daughter is more valuable to you than he is, and this also includes her two children.
I'm all the way with John here, your children and grand children are very important to you, so what this means is that your daughter needs to see her GP, and if this is behind her husband's back then so be it, as it sounds as though he is the type that will tell her 'to snap out of it', but this won't happen, because she's not capable of being able to do this, so that's why she needs your assistance.
If she needs to be hospitalised then you could look after the grandkids, although the husband will object to this, but we will deal with that as it happens.
Please take her to the doctors, because first of all she needs medication, and please let us know what is happening. L Geoff. x