A blood test freaked me out . So when they took what felt like 2 gallons of my blood , I was getting a little bit nervous . So I pushed the doctor until he finally told me what he thought the problem was . He told me that because of the rapid weight loss and growth , that it was most likely an aggressive form of Leukemia .

Question: Why had the narrator rapidly lost weight ?
Answer: Because they were suffering from Leukemia .Because they were on a strict diet .Because they were on a juice cleanse .Because they were suffering from Anorexia .