You did the right thing to call your vet. I am sure you told them why you wanted to see the vet so just keep an eye on her and make sure you take her in the earliest the Vet can see her. You stated that she was eating and acting normal so that is good.
It is so frustrating when our pets are having problems but if you have made sure the Vets office knows what is going on, you've done your best. Just remember if she looks like she is in distress, don't wait for an appointment, take her either to her Vets or a veterinary emergency clinic.