you had may be an occasional one called as paroxicimal hypertension. you may discontinue the drugs, but you surely have to reduce your salt intake because even if your not hypertensive at present you are more for it than others. keep monitoring your BP every week. if it seems high for successive 2 weeks then you have an established hypertension and you have to take the drugs life long to prevent further complication.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications. I would gladly help you.