My mom got really mad at me because I wanted food?

Ok so my mom was doing her work on the computer and I was really hungry and didn't feel good at all because she hadn't been to the grocery store in a while and there wasn't very much for me to eat. I get extremely hypoglycemic and when I don't eat enough I feel awful. While she was on the computer working I was like you haven't been to the grocery store in forever you need to go I don't feel well and she was like not right now I'm working and she didn't even care at all. So I kept asking finally she went after I pestered her enough about it. When she came back I was like thank you for going trying to be nice and she was like you're welcome in a really angry voice and she stormed away. Do you think she was being rude to me?