S1, E5: Crystal is an active young woman that suddenly starts losing all her energy and she feels like a shell of herself with symptoms piling up on top each other. She is told she has Hashimoto's Thyroiditis, but that doesn't explain why she has to be rushed to the hospital. Crystal struggles to continue fighting for real diagnosis before she loses all hope. As a child, Marissa feels ill but is told she just has a cold. When she starts coughing up blood, something she had never done before, her mom realizes something is very wrong. Her symptoms are similar to a variety of other diseases that make it difficult for doctors to find out what's causing the issues. The correct diagnosis proves more difficult to manage than she would have thought, with her health hanging in the balance.