In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Q: Sentence1: Today I was so busy at work that I forgot to eat anything. Sentence2: I ran around all day, completed tasks and attended appointments. Sentence3: At the end of the day I noticed I had a headache and felt sluggish. Sentence4: I remembered that I hadn't eaten and made myself a snack. Sentence5: After I ate the snack I felt much better and regained my energy.
A:
I (myself)