编辑以下段落中的内容，使其更加流畅和易于理解：
Because she wasn't feeling good and had a stomachache, she decided to stay home and not go to work. The reason for this was because she had eaten some really spicy food the night before and it had upset her stomach quite badly, causing her discomfort and pain.
She stayed home from work due to feeling unwell with a stomachache. The cause of her discomfort was some overly spicy food that she had eaten the previous night, which had upset her stomach and caused pain.