Thank you for your question.
There are several possible causes of pain in the left lower abdomen. The most common is a viral infection. It can also be caused by other infections or inflammation of the intestines. A build up of stool or gas in the intestines can cause crampy abdominal pain. It also could be related to problems with the kidneys, such as kidney stones.
Abdominal pain is not an emergency unless the pain is particularly severe and unrelieved by pain medicines, such as Tylenol. It would also be a concern if there were associated symptoms that are worrisome, such as persistent vomiting or blood in vomit or stool.
As long as the pain is not severe, you can continue to use Tylenol to help relieve the pain, drink plenty of fluids, and eat frequent small meals rather than larger meals. It usually will resolve within a few days. If the pain persists, then you should see your physician.