Suppose Emily is a student studying for her final exams. She has been attending all her classes, taking diligent notes, and reviewing her study materials regularly. However, on the day of the exam, she woke up with a severe headache and felt extremely dizzy. Despite her best efforts to focus and complete the exam, Emily struggled to concentrate and ended up scoring lower than she expected.
Can we infer that "Emily's headache did not impact her exam performance"? Yes, no, or maybe?