Hot flashes and nausea are most commonly caused by hormonal imbalances in the body, most notably, by sex hormones. For women, a decrease in estrogen is often to blame, whereas in men, testosterone deficiency can create the problem. Sometimes, the symptoms occur for reasons not related to those hormones at all.
Flu Symptoms. Symptoms of the flu generally begin more suddenly than those of a cold and they are more severe. Flu symptoms include a fever, sore throat, congestion, cough, muscle aches, general soreness, moderate to severe fatigue and headache.
Causes of Flu-like symptoms (Flu-like illness): See detailed list of causes below. Flu-like symptoms (medical symptom): Symptoms similar to flu including fever Introduction: Flu-like illness . Flu-like symptoms (medical symptom): Flu-like symptoms appear like the flu (see symptoms of flu), which tends to be more severe than the similar cold-like symptoms. Flu-like symptoms may include fever, shivering, chills, malaise, dry cough, loss of appetite, and body aches.