Hi, your headache and dizziness
may be because of high Bp
or because of migraine
or some inner ear
problem, or drug induced.
Right now your mild AR with high pressure is the first concern.
Bp cannot cause this, instead this can csuse BP.
Your treatment for bp is correct. Continue it.
If headache anf dizziness persists even after BP has reduced then consukt doc and get other conditions evaluated. Dont worry , you will be fine.