Nausea, upper/lower stomach pain and cramping mostly at night for the last 3 days. Starts late afternoon and goes until I can fall asleep?

Menstrl crmp/integes. I am sorry to hear about your Nausea and cramping. Unfortunately without the ability to ask you further questions it is difficult to say what you might have. This can be anything from menstrual cramps, gastro intestinal integestion, to influenza. If you continue to experience these symptoms you could speak with your physician.