I am sorry your girl has this trouble.She may have an ear infection causing a vestibular issue.
It affects the middle ear causing dizziness and disorientation, much like human motion sickness.
Read more here:
This ailment is often mistaken for stroke however, it is much LESS serious . It is treated with antibiotics to resolve the ear infection.
When symptoms are present they can be relieved by 13.5 mg of dramamine.
Other possibilities are dehydration or hypoglycemia
I would have her checked out by her vet who can run blood and urine testing if necessary.
Please let me know how she is doing.
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