Is it normal to get occasional high bp on medication

I am on Benicar 40 HCTZ, I take only 3/4 of the pill as I have been exercising and losing weight "nearly 20 lbs". What I want to know is the following.

22 year old male

Usually my systolic is 125-140 and my diastolic is 65-75. My machines average reads 132/75 although I am worried for one reason.

I get occasional high readings, like 155/81 or 146/84, I even had a 160/75 a few days ago! However, I check almost consistently "about 30-40" times a day "I have OCD". And I only get those high readings 2-3 times and most of the time they are like "144/75" although I am still worried about the high 150-160's that I occasionally get.

So I guess what I want to know is, since my bp is not consistently high, and is for the most part in the right range can I consider myself treated? Also, am I in danger of a stroke or heart attack or is it consistent high readings that are a problem?

Doctor doesn't want to overmedicate me, and neither do I.

Thanks

Todays readings

128/66
127/71
134/70
132/71
145/77
122/73
153/82
149/76
127/70
132/75
144/70
133/68
129/71
133/65
138/71
116/64

Thanks again