probably wrong for this but personally I don't care anymore (RANT)

 I'm beyond pissed 🤦🏻‍♀️ Every. Single. Time. I take my daughter to her granny house I make sure she's changed, fed & content. But EVERY SINGLE TIME she cries they think she's hungry & I tell them every time she's not because she just ate. I leave and come back after being gone and all bottles are empty that was supposed to last for atleast an hour and a half ( not a lot of time right?). So I figured sending her with just 2 big 9 oz bottles will be cool even after feeding her a whole 8 oz bottle still should be fine. They still fed her both bottles. I know my child she's not a big eater like that and whenever I get her she's constantly spitting up ALOT while crying maybe because her tummy hurts . So i confront my mom and grandma about it only for them to tell me I don't know what I'm talking about & keep doing the shit. I'm to the point I don't even want her going over there anymore. Because I feel like if you don't respect my wishes then you have her for visits. They go against everything I say I'm really fed up. I may seem wrong to them but I feel like if they didn't know if she ate or not they should just simply ask