I need some advice on how to approach mom or what to do. Maybe I am overreacting....
My brother and his wife are expecting their first baby in August this year. They live in Australia. For those that don't know, my mom has epilepsy, 2 new hips, macular degeneration, fibromyalgia, and she is on oxygen at night.
My problem is she seems to think she is going to fly down there. (we live in Canada) and help them with the new baby.

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She is making all these plans, and expecting my brother to arrange oxygen for her and everything. My brother is a first time father, and I don't think it is fair for her to expect him to be worrying about her when he has a new baby. I don't know how to approach her about this. I know my brother and his wife do not want to hurt mom's feelings so they won't say anything. Whatever I say is going to upset her, I know. I just want to make sure she doesn't get hurt.
Anything?