Mildly or moderately elevated blood pressure will rarely give obvious symptoms (a light headache might occur sometimes). A very high blood pressure can give severe headaches, fatigue and nausea. High blood pressure is the result of an increased amount of liquid and salt in the blood, and also of the blood vessel walls being thicker and harder than normal.

Results from SPRINT suggest that if you’re similar to the SPRINT participants, you may experience additional benefits by aiming for a systolic BP close to 120. If you’re considering this, be sure to read my article explaining SPRINT and related research, so that you’ll have a clear understanding of how likely you are to benefit (at best, an estimated 1 in 27 chance based on the research) and what are the risks and burdens.
There are many good options when it comes to such medication. Examples are ACE (angiotensin-converting-enzyme) inhibitors or AII-blockers (angiotensin II receptor blockers) such as Enalapril or Losartan. If this kind of medication doesn’t give the desired effect, you might have to add other medication such as so-called calcium antagonists (e.g. Felodipin) or a mild diuretic (can be found as a combined pill with Enalapril and Losartan).