Save. Flu symptoms can be seen as early as one day after exposure or as late as five days. Once symptoms occur, it is best to consult your doctor. The elderly and young children are more susceptible to the disease and are more likely to die from it. So early detection and treatment for them is critical.
There are various reasons that cause pain in the right side of the abdomen. These may include appendicitis, problems in the gall bladder, ovarian cysts, etc. Appendicitis - Pain in the right side of the abdomen is very commonly associated with appendicitis.
The stomach is divided into 5 regions: The cardia is the small area in the upper portion of the stomach near the esophagus. This region includes the cardiac sphincter, which is a ring of muscle where the esophagus and stomach join. The cardiac sphincter acts as a valve that prevents the stomach contents from going back up into the esophagus.