Low blood pressure, also known as hypotension, is a condition where the blood pressure is lower than normal, which can cause symptoms such as dizziness, fainting, and fatigue. Unlike high blood pressure, which is often referred to as the "silent killer" due to its lack of symptoms in many cases, low blood pressure is more likely to cause noticeable signs and symptoms. Here are some common signs and symptoms of low blood pressure:

1. Dizziness or Lightheadedness: Feeling dizzy or lightheaded, especially when standing up quickly, is a common symptom of low blood pressure.

2. Fainting (Syncope): In severe cases, low blood pressure can cause a sudden loss of consciousness, known as syncope.

3. Blurred or Tunnel Vision: Vision changes, such as blurred vision or seeing a tunnel-like view, can occur during episodes of low blood pressure.

4. Fatigue: Feeling unusually tired or fatigued, even with adequate rest, can be a sign of hypotension.

5. Nausea: Some people with low blood pressure may experience feelings of nausea or lightheadedness, especially when standing for long periods.

6. Cold, clammy skin: Skin that feels cold and clammy to the touch can be a sign of low blood pressure.

7. Rapid, shallow breathing: Breathing may become faster and shallower during episodes of low blood pressure.

8. Lack of Concentration: Difficulty concentrating or feeling mentally foggy can occur with low blood pressure.

9. Thirst: Experiencing persistent thirst can sometimes be associated with low blood pressure.

10. Low Blood Pressure Readings: Blood pressure readings below 90/60 mm Hg are generally considered low.

It's important to note that low blood pressure can be caused by various factors, such as dehydration, heart problems, endocrine issues, medication side effects, and more. Treatment depends on the underlying cause and severity of the low blood pressure. If you experience persistent or severe symptoms of low blood pressure, it's important to consult with a healthcare professional for proper evaluation and management.