I'm so sorry to hear this Nat. Loosing a parent is never easy.
I see now that beauty is passed well along the female side of your family. I see much of your daughter and you in your Mom's eyes.
I think the decision should rest finally with the person being photographed. If that person would feel bad about having shots of them while they are sick, they shouldn't be done. If they don't mind, then it should be up to the people who want the photos. Those who don't want them certainly don't need to look at them.