Flu like symptoms for part of last night-couldn't get warm, nauseous, fatigue-but feel completely fine this morning. what was it?

OneFlewOverYourNest: Who cares!You're all better, right?And if that was the flu, then it flew over your cuckoos's nest faster than a...a cuckoo!But some viruses can do that:pass through you like a flock of cuckoos then leave with a thank you note and some droppings.You may feel completely well, but your body is still recovering,so take it easy for a day or two so it can clean up those droppings.Pray for no aftershocks

Virus: Could have been a virus that came and went! If you feel better, not to worry, it has passed!