Am I Overreacting?

I don’t know if I’m overreacting but I wanna hear your opinions.

So every morning, my mom cleans the house and in the last couple of months I’ve helped her around. So last Sunday, we had dinner and I didn’t help her clean up afterwards because my stomach was killing me (usually she wouldn’t mind if I didn’t). Later that day, she said she’d dye my hair for me and that was that. But as she was doing it, she was really rude and was giving me the cold shoulder so I asked what was wrong. She said “You never helped me clean up”. I just thought it was childish but that’s just me.

But what’s been bothering me is the fact that when I wake up, I feel I HAVE to help her around the house. She said she doesn’t expect me to but I saw the way she was that Sunday. I do most of the house work.. It’s kinda like I’ll be sitting down and she’ll just hand me the products to clean up with and expect me to do it.

There’s 2 other grown men in my house, my two brothers. She NEVER asks them to do anything and I confronted her about that and her answer was “But they’re men, they wouldn’t do it properly.” (This made my blood boil tbh). Sometimes I even make dinner for my two brothers.. Mind you one of them is 18 and the other is 23. I’m 20 years old and I make my breakfast, lunch and dinner. It’s ridiculous.. I feel like a maid in my own home. Am I overreacting?