• Pain in the abdomen(tummy) for longer than an hour: most kids feel fine after the test. 
• If you are throwing up several times: try to drink small amounts of drinks like Sprite or ginger ale, or eat a little bit of popsicle to make sure this isn’t a problem.
• Bleeding from the bottom: passing small amounts of blood (less than a spoonful) may be normal for 1-2 days, but if it is more than that or it continues to let your parents and doctor know. 
• Fever : if there is persistent fever, let your doctor know.