Is my mom emotionally abusive?

im 14 and insecure about my weight when my mom is stressed she takes it out on me by calling me lard a** and when i start to cry she says im not her child because crying means your weak. she yells at me allot sometimes i don't even know what i did. my mom was in a bad mood one day and told me she hated me i ruined her life, i would never amount to anything and that she wished i was dead so i tried to over does i was in the hospital for 2 days and she told me she loved me and didn't mean what she said but a week later she was back to her old self. soon after that she told me she wished i would take a bunch of pills at school and never come home. but everyday she usually calls me fat and dumb and that i eat to much i don't like to eat around her and when i do i find myself running to the bathroom and making myself throw up. is she emotionally abusive or am i just crazy?