8 year old experiences mild dizziness

Hi! My 8 year old has been experiencing mild dizziness which usually lasts just for 2-3 minutes. This has been happening daily, once in a day, for over 3-4 weeks now.
We have done a brain MRI and an EEG which showed no abnormalities. However, the doctor has prescribed a low dose of a syrup for seizures for a month. Treatment will be carried forward accordingly, later based on observations for a month.
We, as parents, are totally convinced of this. Besides, the very brief dizziness spell, my kid doesn't face ant other kind of discomfort or disorientation. She is completely fine even when she experiences the dizziness just that she needs to take a break for couple of minutes from whatever she is doing. We have also checked for any deficiencies which may cause this but there is nothing which may contribute to this. Would appreciate, if anyone could suggest or share similar experiences and treatments.