Treat the hypertension
First of all, let's clear up the definition of hypertension. It is defined as systolic/diastolic pressures in MM of Hg of greater than 140/90.
Left untreated, it can cause a lot of problems such left ventricular hypertrophy (enlargement of the left side of the heart) and CHF (congestive heart failure). Your optomitrist can even tell if you have been hypertensive for extended period by looking at the blook vessels in your eye and seeing a condition known as AV Nicking.
Therefore - quit worrying about the medical. Worry about you. Take care of you and the medical will be taken care of. The medical is a physicial. If the physical shows something, you treat it, get your medical and go flying.
Now about getting your hypertension down. Look in the mirror. If you are a bit soft and puggy, quit picking up a dozen donuts to go to work and drop a dozen. As little as 10 pounds of weight loss can drop your pressure a few points.
Exercise - The dreaded "E" word. Self explainatory. Make it a walk with your bride after dinner instead of dessert. Also good for you marriage.
Watch your sodium intake. I did the math 25 years ago in pharmacy school but in layman's terms, don't eat more than 1 teaspsoon of salt a day. Don't forget that sodium is in just about everything. If food never tastes salty to unless you add salt, you are eating too much. A piece of American cheese should taste slightly salty to you. Take the salt shaker off the table and get out of the habit of freely adding salt. Can't stand it - get a salt substitute. Hot sauce works wonders for this since your taste buds are focused on something else.
After deciding to get healthy, drop a few, watch your salt, get some exercise, and if your BP is still elevated, medication is next. If you want a long healthy life and are unwilling to try the above first, then think of it as entering into a lifelong contractual agreement with your physician. Hmm...maybe you should try the above. There is a rather lengthy list of medications used to treat hypertension approved by the FAA. I read someone takes benzapril (which is an ACE inhibitor) which makes a good choice for a pilot due to its side effect profile.
I highly recommend that you go to one of websites that list FAA approved medications such as
http://www.leftseat.com/medcat1.htm and print it out to take to your doctor to discuss this with him. Although approved, some medications increase photosensitivity (can you say sunburn) and this is something than can happen in an RV. Diuretics have the potential to make flying uncomfortable unless you have a relief bottle, beta blockers can decrease sexual function (no fun after flying), and the list goes on. Point being, choose wisely and you can have your health and fly too.
All this to say quit worrying about getting past your medical. You are fooling yourself and you need to take care of you which in turn will take care of getting an A+ passing grade. You are also putting me at risk when I'm up there with you. Please take care of both of us.