Whats wrong with my mom >:(?!?

Well like today she went washing and I tagged along cuz after she was going grocery shopping! But once we got to the grocery store she wanted me to stay outside to watch the laundry while she was grocery shoppin so I said NO cuz the only reason I went was to go to the grocery store so she snapped on me and stormed home all pissed sayin she didn't wanna b seen with me !! This isn't the first time she's acted like that! Once we were goin to little ceasars and I said I wasn't sure if I was going to pick up the pizza cuz I didn't feel good so she snapped on me throwin bottles and saying she never thought a mother could hate her child as much as she hates me and a buncha other stuff like WTF she is so fckin weerd and bipolar I can't take it I just feel like slappin her back to sense T.T! Oh and she's sooooo nice to my little brother like wtf he's worse then me %26gt;.%26lt;Whats wrong with my mom %26gt;:(?!?
She has got a guilty conscience and probably shoplifts .