Will There Be Severe Chest And Stomach Pain Due To Hole In The Heart?

my grand daughter was diagnosed several years ago with a hole in her heart. Surgery to close the hole will occur when the doctors feel she is old enough. Her and her mother are the typical 'boy who cried wolf' complainers. (I don't mean to be harsh, but she has 3 kids and numerous times shes said they were on their death beds for non-existent conditions, just for attention.) My grand daughter uses physical complaints for attention now too. My question is, with a hole in her heart should she experience 'severe' chest and stomach pains? when it's time for bed, for instance, she will say her heart is hurting and she will throw fits and demand pain pills. (she is 8). Just wondering if this is a legitimate symptom. She is full of energy and runs around non-stop... until she gets told something she doesn't want to hear, like bed time.