My aunts ex, my cousins father, my uncle i guess, just died. My mom just started running through the house freaking out and crying. I feel sad but i wasn't all that close to him. I think its more sad in general and for my aunt/cousins. I have NO idea how he died yet, and am concerned about my mothers reaction. It scared me.
I am sorry. The best thing that you can do is try and be there for your Mom, she is going to be in need of support. Not just now, but also months done the road. there could be days where she can get upset. Just be there for her.
I am sorry for yours and your family's loss. I agree with phoenix89 on what you should do. It's best for you and your family to all be there for each other to support and console each other.
I could say many things to this but I think the most important thing to say is that I'm here if you need to chat or something..I know I'm most likely the last person to really talk to but this stranger cares
The reaction your mom had is pretty normal. Everyone grieves differently. I agree with everyone else, just let her know you're there for her if she needs you. I had a death in the family recently too (my cousin's wife who I've known since I was like 6 and was pretty close to), and my friends kept telling me to keep in mind "this too shall pass". It didn't really help me, I kind of wanted to yell at them to stop saying that, so don't say that to her, but I'll say that to you in regards to your mom's reaction because it is normal to freak out a little when a loved one passes, but she will come around when the feeling dulls down.