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.
Cold and Flu Overview. The common cold, including chest cold and head cold, and seasonal flu are caused by viruses. Use over-the-counter cold medications to relieve symptoms including sore throat, runny nose, congestion, and cough. Flu symptoms are similar, but include fever, headache and muscle soreness.