Cramps, aches and sharp pains in your abdomen can all be signs that your digestive system is in distress. Severe cramping can even lead to shortness of breath. Cramps can present themselves after strenuous exercise, so don’t immediately assume that you’re sick if your stomach hurts after physical activities, but more worrisome after a normal, routine day.
You also might just have indigestion, or be feeling signs of more serious conditions like appendicitis or ulcers. Involuntary contractions of the muscles in your abdomen are causing the cramps. If the root cause is gastroenteritis, these contractions are one of the tools your body is using to help instigate the expulsion of the invading entity (i.e. the virus or bacteria). Hot water bottles and simple pain relievers like ibuprofen can help ease the cramping, but it will return until the underlying cause has been tended to.