Would really like to thumbs up @run2bhealthy4life's answer...this is what I had in mind as well.
High blood pressure medication has adverse effects...and I don't recommend people start with medication.
Look, there have never been, and never will be advantages to relying on meds on the long term, and when natural alternatives exist, why not try them out first?
It's obviously gonna be different for everyone, but I'd really encourage you guys to start with the basics (if you aren't already doing these things), like adequate sleep, enough exercise, implementing a low sodium diet, quitting smoking, cutting the alcohol.
Then, you might want to have a healthy intake of three of the most important minerals to the healthy functioning of the heart: magnesium, calcium and potassium. That's things like pomegranate, blueberries, low fat milk, sardines, and foods like that.
I know this is an outdated thread, but can't help but to add my 2 cent to this.
I personally think it's important to note what happens surrounding these spikes. Take exercise - you do any type of cardio, your blood pressure's gonna spike. Obviously, you don't have to be doing anything as drastic, but there are many things that can trigger these spikes, which can be hormonal, a simple flitting emotion triggered by some external factor, white coat hypertension, it can be anything.
So in addition to keeping track of your figures, try and keep track of what you're DOING. Is something external the cause of these spikes? Whatever's happening, it might be wise to figure it out before consulting the doctor, who's only as helpful as your observations if nothing come up on the diagnosis or routine checkup.
Other things that health experts and doctors advise include dietary changes (check out the DASH diet videos as well, this is CRUCIAL in helping you lower your blood pressure), as well as some really down to earth, conventional, but true advice on getting the basics right (hydration, exercise, rest, no alcohol/smoking, etc.).
Last, I think that if anything else, the thing to really do is to understand WHERE your high blood pressure reading comes from. If it's a standalone condition, I'd recommend just starting with the natural cures right away, but if it's a secondary condition, try eliminating the source (eg stress, or a different condition like Crohn's, etc.) and see how that affects your blood pressure.
If all fails, it's time to consult a physician (or you might decide to do this from the very beginning!).