I had asked for some further information and have not heard back.
There are many different possible causes of lower abdominal pain. If the lower abdominal pain is of short duration, the most common cause would be a viral
infection or a response to something in the diet. Other possible causes include various other infections or inflammatory conditions.
If the lower abdominal pain is of longer duration, then it would be less likely to be an infection, although there are some bacterial overgrowth syndromes that can be present. It also could be due to irritable bowel syndrome, or IBS. IBS is very common, but there is no direct test to confirm the diagnosis, so the diagnosis is typically made by excluding other possible causes.
There are some simple home interventions
that can be tried, including increasing the amount of fiber intake, either in the diet or with fiber supplements, or the use of medicines for gas, such as simethicone or activated charcoal.
If I can provide any further information, please let me know.