(Edit)forgot to mention. Can't take it anymore.

So my sister in law had her daughter at 31 weeks and weighted 4lb and I had my son at 39 weeks and he weighted 4lb 10oz. Mine and Her due date was 1 week apart. Her daughter have problem in her eyes and some other complications so she need therapy. My sister in law is jelouse that my son is healthy she keep asking me if he have any problem in his eyes even after I told her no. Than she keep asking me if he need to see a specialist. My son is 11lb and Her daughter is 12lb 8oz still she says that her daughter is small and my son looks big. I'm so tired of her this kind of bullshit.One day i was carrying my son and she pushed him so hard my son started crying. She even beat her own son like a dog. Am i wrong for being mad about that someone wants bad for my baby boy?