Hi, I’ve been feeling like fainting almost every time I stand up. I get dizzy, nauseous, and my vision goes black for a few seconds.

It used to make me faint, and still does sometimes. My hands often look pale, and when I pinch my palm, it takes longer than normal for the color to return. I eat well, drink water, and don’t take meds. I’m worried this could be anemia, low blood pressure, or something more serious.