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.
Cold symptoms typically begin with a sore throat that may be mild or severe. After a day or two, the sore throat improves and nasal symptoms, such as congestion or a runny nose, appear. Nasal secretions begin as a thin and watery discharge, then develop into a thicker and darker discharge several days into the illness.
Flu vs. Cold. There are differences between the flu and a cold, say local medical experts and the Centers for Disease Control and Prevention. The biggest difference is that with the flu youâll usually have a fever (100.4 degrees or more) coupled with muscle pain and body aches, which can be severe. With a cold, youâll have more symptoms like sneezing, a cough and phlegm, said Dr. Amanda Porro, director of Nicklaus Childrenâs Hospitalâs pediatric care center.