Would love some advice. Maybe it's pregnancy hormones talking?

So: My mother has been sick since last year.. She has had a series of surgeries, basically incapacitated and it's been really stressful. My MIL has been great and helped out when we have asked (my parents usually help with childcare but this hasn't been as easy given the medical situation).

However, I'm really hurt that neither of my two SILs, who know the situation, have so much as ASKED how she is. No texts, emails, calls, nothing. I don't need "help" from them but a cursory: Hey, how's your mother feeling? would be hugely appreciated and thoughtful. Nope, nothing.

This kind of an ongoing thing. They never reach out. They are fine in person but just don't show any caring or outreach or basic social skills. (Case in point: I once saw one of them right after a dear friend's funeral and she didn't even express sympathy, she proceeded to show me decor plans for her new bathroom!)

DH wants to go down to visit one of the SILs next weekend and his MIL also lives nearby. I am going to find it hard not to say something snippy. I WOULDN'T, but I would want to.

So, my savvy bees, WWYD? Keep quiet? Maybe let something snarky slip? Say honestly, Hey, the fact that you know my mom is incredibly sick and haven't even ACKNOWLEDGED it makes me sad? Nothing at all? DH says it's "just how they are" and not to personalize it.