What could be the cause of severe nose bleeds followed by headaches that are on one side your head behind eye and down neck?

Causes of severe nosebleeds followed by headaches:

1. Nasal septal deviation: It is a condition where the nasal septum (the cartilage and bone that divides the nostrils) is deviated to one side. It can cause chronic congestion, leading to nosebleeds. The headaches may be due to the pressure caused by the deviated septum.

2. Sinusitis: It is a condition where the sinuses (air-filled cavities in the skull) become inflamed or infected. It can cause nasal congestion, headaches, and nosebleeds.

3. Allergies: Allergies can cause nasal congestion, sneezing, and nosebleeds. If the nasal passages are irritated, they can become more prone to bleeding. The headaches may be due to the inflammation and pressure in the sinuses.

4. Medication: Some medications, such as blood thinners and decongestants, can cause nosebleeds as a side effect. If you are taking any medications, talk to your doctor about the possibility of them causing nosebleeds.

5. Trauma: A head injury can damage the blood vessels in the nose, leading to nosebleeds and headaches.

6. Vascular abnormalities: Some people have vascular abnormalities that can cause nosebleeds and headaches. These abnormalities can include weakened blood vessels or blood vessel malformations.

7. Underlying medical conditions: Certain medical conditions, such as high blood pressure, heart disease, and kidney disease, can also cause nosebleeds and headaches.

If you are experiencing severe nosebleeds and headaches, it is important to see a doctor for a proper diagnosis and treatment. The doctor may recommend medications, nasal sprays, or surgery to correct the underlying cause of the symptoms.