Yes, these do sound like absence seizures. They can and do happen before the age of four years. My son was an example of this. He had them from about two, and then went on to have partial complex seizures for about six years, then nothing. Fortunately he grew out of them. Try not to worry too much - I know it is hard not to - the seizures can usually be controlled by medication, and if your daughter has to have seizures, absence ones are the least distressing and disruptive of all. The very best of luck to you and your daughter. She is lucky to have such an observant mother.