It is not possible to draw any specific conclusion from your description. There are no associated symptoms to suggest a particular diagnosis
Generally symptoms limited to one side point to a local cause. When they are bilateral, it is a systemic (general) cause
Though it doesn't sound alarming, in view of the age, recurrence and history of hypertension
, it is necessary / wiser to be examined by a physician or neurologist
A stitch in time could save nine / better be safe than sorry.
All the best