Hi ! Yes, if she gets the pain regularly and the severity increases, then you have to show her to a doctor to exclude any surgical problem like diverticulitis
(common in persons with constipation
) and a ureteric colic for which he may advise her to undergo an ultrasound
abdomen, and a colonoscopy
if need be. If all these are negative, then this pain could be a central pain arising from brain, an infrequent symptom of parkinsonism. In that case, your family physician may give her only symptomatic treatment.
I wish your mother to recover from her pains soon.