Flu like symptoms around implantation?

Tina • God. Husband. Family. Due 12/2/15 with baby #1!
I am only like 5/6dpo, but last night I felt like I was getting a sore throat. I took meds and went to bed. I was up all night, hot and cold flashes, night sweats, fever (101.03) and periods of nausea. Today my body hurts, like I ran a marathon. No one around me has been sick, and I can't even remember the last time I was sick. I could be way off, but I'm just wondering if anyone experience flu like symptoms close to ovulation/implantation? Or as a very early pregnancy symptom?