5 to 7 days before period i start to have reflux, severe nausea, jittery, insomnia, loss of appetite and elevated body temperature, hot flashes chills?

Premenstrual: If these symptoms occur each and every month in conjunction with your periods, they may well be mediated by the hormonal changes in the menstrual cycle. Treatment would be symptomatic with bland,low fat, low salt diet, flat ginger ale to relieve nausea and Tylenol (acetaminophen). Discuss this with your gynecologist if you have further concerns.