Is it normal that my mother really stresses me out?

For several years of my life I would tend to get really aggressive and/or almost depressed, not knowing how to deal with all the stress being put on me by a seemingly unknown force. (Besides school, that is)

It was only in recent times that I eventually came to the conclusion that a major source of my frustration and stress was from my mother. Some examples include:

I often don't want to ask her for anything, no matter what it is I need from her, because she gets angry and starts to nag or yell if I happen to choose the wrong set of words to communicate with her.

She is almost constantly stressed out from her job, or the pets, or my father, or something she hears on the news or reads. She's almost never in a good mood.

Travelling anywhere with my mom is exhausting because she takes so long to get ready for anything, and in the car she tends to get frustrated for one reason or another. I can never hold up a conversation with her for long on a road trip, or really anywhere, because she gets distracted easily or is always busy with something.

I really feel like she never gives me attention or even notices when I'm in the same room with her. All she seems to care about is work, what she's watching on Tv, or making food for herself.

Speaking of making food, she will yell at anyone or anything who gets even slightly in her way when she makes dinner - which I understand to a degree - but she yells at the cats for getting on the table literally every single day instead of just pushing them off or picking them up to put them on the ground.

I could put more examples, but this is long enough as it is. What do you guys think?