What happened to Corrie when she began trying harder take care of Betsie and protect the two them?

When Corrie began trying harder to take care of Betsie and protect the two of them, she started neglecting her own health. She didn't eat properly and didn't take care of her personal hygiene, which led to a decline in her physical well-being. Additionally, the constant stress and fear that came with the situation began to weigh on her mental and emotional health.