I'm not a doctor, but experiencing chest pain after taking a medication can be concerning. DayQuil contains several active ingredients designed to relieve cold and flu symptoms, and taking it on an empty stomach might cause some gastrointestinal discomfort for some people. However, chest pain can also result from various factors, including anxiety, indigestion, or other medical issues.
It's essential to consider the nature and severity of the chest pain. If it's mild and goes away quickly, it might not be a cause for concern, but if the pain is severe, persistent, or accompanied by other symptoms like shortness of breath, dizziness, or sweating, you should seek medical attention immediately.
It's always a good idea to consult with a healthcare professional when experiencing unusual symptoms, especially if you're unsure whether they are related to a medication.