To get an idea of exactly how small the worldâs smallest insect is, take out a ruler and look at those tiny lines that appear in between centimeters (make sure youâre not on the side that measures in inches). If in doubt, ask a grown-up to help you find the millimeters.
Nausea and vomiting are very nonspecific symptoms that can be common among people with stomach cancer. Persistent nausea and/or vomiting needs to be checked by your doctor. It can indicate a serious health problem and can cause damage to the lining of your esophagus.
Gas and Bloating as Symptoms of Cancer. While it's too big of a leap to suggest that gas and bloating are early warning systems for cancer, they can, if fact, be the first sign if they are persistent and worsening. This is because a tumor in the colon can cause obstruction, basically a roadblock that can make passing stools increasingly difficult.