I hate when someome else tries to tell me what is wrong with my kids. Like they're with me 24/7, I know what is and…

I hate when someome else tries to tell me what is wrong with my kids. Like they're with me 24/7, I know what is and isn't wrong with them when they're sick, not someone who doesn't take care of them. My MIL told me I need to take Sammy to the hospital because he has stomach pain and using Tylenol for more than 24hrs isn't good. 1; he was crying because I moved him off of me. 2; he has a fever.(only thing wrong with him) 3; I've given him Tylenol 1-2times a day(3days now). 3; he isn't throwing up, he's drinking his juice/water, has wet and poop diapers. The hospital isn't going to do anything but do that same damn thing I've been doing! I know, I've been thru it already and my mom has even told me herself since she's worked in the ER.