Blood Pressure

My doctor took my Blood Pressure and it was 132/80(prehypertension), and this made me very nervous, because my BP is always 120/80 or less. Took my BP later that day and it was 118/62, and I took it later that night and it was 118/62 again. So take factors of nerves, time of day, and sitting in the office waiting for the dr into affect. Don't always believe the first reading. Always recheck!