I had asked for some additional information and have not heard back.
There are many different possible causes of left lower abdominal pain.
The most common cause of left lower abdominal pain of short duration without any associated symptoms would be a viral infection of the GI tract. There are a variety of other infections that can also cause left lower abdominal pain, including specific infections of the GU tract, such as diverticulitis, or the urinary tract, such as a kidney infection and less commonly a prostate infection.
There are also a variety of non-infectious conditions that can cause left lower abdominal pain of short duration, such as kidney stones.
Kidney stones and chronic irritation of diverticuli also can cause left lower abdominal pain of longer duration. There also can be inflammation or obstruction of the GI tract.
If this of short duration and is not associated with other symptoms, then it is appropriate to manage this as a viral infection with symptomatic relief until the symptoms resolve spontaneously.
If I can provide any additional information, please let me know.