Should I say something

I have been dealing with a pretty big kidney stone for almost 2 weeks now that will just not pass. My mother called me the day after I got out of the ER to tell me that my pregnant sister was just in the ER for a migraine. My sister over exaggerates every little thing. Anyways when my mom called me she didn't even ask how I was doing. I had to tell her what the doctor said without even a hint of her asking me. That was the last day we talked about me. She hasn't even asked anyone that I live with how I'm doing. She's always cared more about my sister than me. She told me after I got married that she's always been closer to my sister and she basically said that she loved my sister more than me. It just really hurts me cause I'm the one that stepped up and took care of up to 6 kids at a time all before I turned 16 when my mom's depression was so bad she wouldn't get out of bed. 3 of the kids were my younger siblings. I was never in trouble with the law like my sister was. I was engaged before I slept with my husband. I haven't cheated on my husband like my sister has. I haven't slept with over 100 people like she has. I didn't get pregnant before I turned 16 like she did. I did everything the right way but yet my mother still loves her more. I'm crying right now not because of the physical pain I'm in but because my mother hasn't even asked how I'm doing. Should I say something to my mother or do you think it's pointless. What should I do?