A co-worker, who I have never worked with, had a baby in July and has taken a year off of work. She brought him in to visit this week and I was surprised to see how small he is. She mentioned being a "bit worried" because he was 8lbs5oz when he was born, and now 2 1/2 months later, he is 8lbs2oz. She said she wasn't too worried, because he was meeting his milestones. I'm a quiet person and didn't want to freak her with so many people around oohing and aahing over him. Nobody else seemed concerned. They were saying things like "everyone just wants a chunky baby" "oh, don't worry. He's just fine." I could literally see bones in this baby's elbows and head. I know that this absolutely isn't normal. I don't know if she's seeing a doctor. I imagine she doesn't have insurance for herself, taking this year off, I'm hoping she has gotten state insurance for the baby.
So, do I say something? She's a first-time mom and clearly adores him, but doesn't seem to realize that something may be terribly wrong with him. He's 3oz less than when he was born in July! If we were close, I would definitely talk to her. Would it be weird for a random co-worker to call with such concerns? I was thinking I could express concern to a mutual friend. What do you think? What would you do?