Exhaustion had rooted itself deep in her bones and the last few days , no matter how much she slept , she could n't shake it . She 'd woken up that morning with a headache and struggled with it most of the day . She could n't take anything because no one knew how any kind of medicine would affect her . Besides , taking something meant admitting to someone in her family that she did n't feel good .

Question: What may be the reason why she ca n't take medicine for the headache ?
Answer: She has a condition that may affect how the medicine works or does n't work for her .She does n't believe in medicine .Her family does n't believe in medicine .She is used to her headaches and does n't need the medicine .