Hi,
I understand your concern.
Severe dizziness is due to vertiginous syndrome (middle ear syndrome).
Check your blood pressure (bp), record the results for future reference.
Persistent increased bp can also cause severe dizziness although
heart rate is within normal range.
Before trying any medication, I highly recommend to consult further with
ENT specialist to rule out inner ear issues first.
A complete cardiac check up is highly recommended to evaluate the work of your heart: ECG,
echocardiogram of heart and neck blood vessels.
Spondyloarthrosis of the neck should be ruled out through X-ray of
spinal cord (neck area).
Depending on the results we can discuss for the best treatment strategy. Avoid quick moving of head, meanwhile, and continue taking Damamine. Betahistin is the drug of choice,however, let's wait for test reports first.
Wish fast recovery.