If you get dizzy standing up, then stand up more slowly, that’s what I was told many years ago by my doctor. But there is a real reason for this problem. Your kidneys and your adrenal glands regulate your blood pressure. Normally (and I do mean normally), your blood pressure should slightly rise as you go from a lying to sitting, or from sitting to standing position. That means that if your BP is 120/80 sitting, it should be around 125/80 when you stand up, or drop to 115/80 when you lie down. Although the kidneys could be part of the problem, the vast majority of the time this is an adrenal issue. The stressed and tired adrenal glands can’t pull their load in the job to keep your blood pressure up, so it drops when you rise, and that makes you dizzy. If it drops too much, then you could get tunnel vision or even pass out. The long-term effect of this is low blood pressure, a sign of hypoadrenia (low adrenal function).
Here’s what happens next: Your body, being as smart as it is, tries to fix this problem by raising your blood pressure to what is considered high blood pressure in medical terms. It does this so when you rise, the blood pressure is going to drop, but it is going to drop to a “normal” level, so that you don’t pass out. Pretty smart, huh? Though what is not as smart is when someone wants to put you on high blood pressure medication without getting the full story and understanding the situation.