Pregnant and hormonal at work!!

Ok guys. I am about to lose my mind at work. I work in an office with 5 other women. The one who sits directly behind me is either humming or talking out loud to no one impaticular most of the day. The other one I can't stand has been out "sick" for over a week and now that she is back she is forcing herself to talk as if she is losing her voice. You can tell that she is faking because she will forget and talk just fine but if someone calls she goes to faking it again. I know these are personality differences so saying something would just make me look and sound like a bitch. And maybe I am! But I am serious I'm on my very last nerve. Keep in mind these two women are 50 and 60 years old. And everyone knows the one is faking. We look at each other like omg when she talks that way and the one who talks all the timw, I guess you'd have to see to believe. She will watch videos loud on her computer of her grandchildren over and over and say my baby is so cute or he's so sweet. I think she just wants us to acknowledge her but no one ever does. Advice? Or am I just a bitch who needs to get over it!?!