Plan B and Flue Like Symptoms

Patient: I took Plan B two days ago, and I woke up today with flu like symptoms: body aches, chills, exhaustion, headache, and sleeping through the day. This doesn’t feel like a regular flu or cold, it feels a lot different and I was wondering if it was common to get symptoms like this.

Symptoms: Headache, body aches, chills, fatigue, sleeping all day, nausea