That really does sound like hairballs
... and you may never see them, as I imagine they could be upsetting her stomach just while she is digesting them and never actually come up.
__________________
Windy~Smoke~Buddy~Palomine~Fagan~Asker~Mickey Blue Eyes
Venus
“The greatness of a nation and its moral progress can be judged by the way its animals are treated” -Mahatma Gandhi
"We're the renegades, we're the people; With our own philosophies; We change the course of history; Everyday people like you and me"- R A T M