It is a known fact that in most cases, high blood pressure does not cause headache or nosebleed, except in the case of hypertensive crisis or a medical emergency when blood pressure is 180/120 or higher. At the time it reaches this stage, a lot of damage has been done.
There are however, some symptoms that precedes an emergency with the above symptoms.
Blood spots in the eyes
Blood spots in the eyes is common in people with diabetes or high blood pressure, but neither condition causes the blood spots. Floaters in the eyes are also not related to high blood pressure. However, an eye doctor (ophthalmologist) may be able to detect damage to the optic nerve caused by untreated high blood pressure.
Facial flushing occurs when blood vessels in the face dilate. It can occur unpredictably or in response to certain triggers such as sun exposure, cold weather, spicy food, wind, hot drinks and skin-care products. Facial flushing can also occur with emotional stress, exposure to heat or hot water, alcohol consumption and exercise, all of which can raise blood pressure temporarily. While facial flushing may occur while your blood pressure is higher than usual, high blood pressure is not the cause of facial flushing.