am i crazy or is my mom toxic?

my mom is VERY religious and grew up in a religious household. she’s just very overbearing sometimes and makes me feel bad about myself. she tells me to workout but i’m only 95 pounds ( i’m 5’1”), she compares me to other girls and it makes me feel like i’m not good enough and i should change my personality, and she refuses to take me to the gyno for my cramps, like they’re awful! i cant even stand up because they’re so bad, and i have a period for 1 day and the next 8 days i just get brown discharge. i have a boyfriend for 6 months, and we have boundaries ( we aren’t allowed to hold hands.), and she threatened me that if i don’t graduate in the top of my class, she will be very disappointed in me. i feel like i don’t have a mom anymore. i feel neglected and unloved, and she just doesn’t treat me well. i have never given her a reason to hate me. why does she hate me so much??