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.
If you have a cold, youâll probably experience symptoms such as: 1  runny or stuffy nose. 2  sore throat. 3  sneezing. 4  mild-to-moderate fever. 5  cough. 6  headache or body aches. 7  mild tiredness.
Symptoms of the flu tend to start quickly and can include fever, chills, dry cough, and sore throat. It's easy to confuse a common cold with flu symptoms.However, cold symptoms are usually milder and don't last as long as the flu symptoms. If you become infected with the flu virus, you will usually feel flu symptoms 1 to 4 days later.It is important to note that you can spread the flu to others before your flu symptoms start and for another 3 to 4 days after your flu symptoms appear. (Click Flu Virus for more information about the flu.).ymptoms of the flu tend to start quickly and can include fever, chills, dry cough, and sore throat. It's easy to confuse a common cold with flu symptoms.