Toxic mother

Just as my post reads above.. even as a child I never had the best relationship with my mom due to her actions/words towards me. Anyway so I’ve been sick for almost 3 weeks now got rsv from my two kids last time plus fluid in both ears and one also had an ear infection in it and even still today I can not hear in my left ear so my doctor gave me a whole new antibiotic to take for it which still didn’t help me so I’ve been on two different ones for this anyhow my mom also got sick not with rsv but idk what and they gave her strong antibiotic through an iv plus an antibiotic pill that she claimed made her heart race so she stopped taking it and a week ago or so I was nice enough to give her 4 of my antibiotic until she went to her own doctor again to ask for a different one, she never did. And now tonight she asked me if I would just up and give her MY medication because she refuses to go to a doctor herself to get what she needs and I told her no that it doesn’t matter that I have two different antibiotics I’d like to keep them both because I’m still sick and being pregnant makes you more prone to catching colds and I want to keep both for a backup. And then she proceeded to call me heartless etc because of this and saying I never helped her. I’m so tired of this because I helped her last time I gave her 4 of my medication! Can she not idk care about her own pregnant daughter? Like why try to guilt trip me over this? Why can’t she understand this? And she’s very much able to go to a doctor herself.