It can be hard for you as a layperson to know if your abdominal pain requires urgent medical attention.
As a general rule of thumb, abdominal pain that doesn't go away should be seen by a doctor. If you are not sure perhaps you can see your nearby GP first.
Assuming you have already seen one, and the pain is recurrent, it will be good to revisit your GP.
Assuming that it is constant even after seeing, it will still be good to revisit your GP.