If high blood pressure
is not treated then over time it can result in damage to heart,brain kidneys etc.The longer it is left untreated, the greater the damage that is done.
High blood pressure requires medical attention and treatment because it greatly increases the risk of complications that can cause premature death or serious disability. Having high blood pressure can double or triple your risk of heart disease
and stroke, and puts you at a greater risk of developing kidney disease.
By keeping your blood pressure normal through treatment, you can reduce your risk of heart failure
by more than 50% and lower your risk of heart attack
by 20% to 25%.
Similarly chances of strokes go down by 40 %.
Consult your doctor and get her the proper treatment.
As far as anxiety is concerned it can be tackled by medications as well as proper counselling
I hope it helps