BP MONITORING. It so? do i have high bp?

Dear Sir, I measure BP through Omron BP Monitor at home. I measure BP at different times of the day like morning, Noon, Evening and late night  I strictly follow the protocol advised by AHA for measuring home BP i.e. legs uncrossed, BP Table at heart level, cuff wrapped on bare arm without any clothing etc. I have been doing home BP monitor from more then a year and the readings were well below 120/80 level. See the Attached image of my BP notings. I can't attach them all because of the limitations in attaching the files so only attaching few images. Please check. Though my BP at home in at normal levels below 120/80 but at doctors office it rises to140- 150/70. Why is it so? Do i have high BP? Please advise.