Stress can cause goosebumps because it often triggers the same pathways as when we face danger. This is known as the fight or flight response. It is initiated when the brain identifies a danger, either present or impending, and readies the body for action â that is either to fend off the danger (fight response) or maximize the bodyâs resources to flee from the danger (flight response).
1 Symptoms usually appear within one to two days of exposure. 2  Although you typically feel better after a day or two, you're contagious for up to three days after you've recovered. 3  Some people may be contagious for up to two weeks after recovery. 4  Rotavirus.
The incubation period of the stomach flu is the time from when you swallowed the viruses to when you start to feel sick. There are a variety of viruses that cause the stomach â¦ flu (viral gastroenteritis).The incubation period for most of these viruses is 24-48 hours.However, the incubation period can occasionally be a full week.hether or not a person is contagious during the stomach flu incubation period will depend on which stomach flu virus the person is infected with. For example, with a rotavirus infection, the person is contagious during the stomach flu incubation period.