If your daughter is experiencing severe headaches, blurred or double vision, vomiting, or blood clots coming from her nose, these are something to be seriously worried about. The cause of all these might be high blood pressure, a head injury, or even a blood clot in her brain. Take her to the hospital immediately. Call an ambulance or take her to the emergency department so that they can diagnose and treat her properly. 

Sensorineural hearing loss happens when hair cells in the inner ear are damaged. This condition is common and can't be reversed, but hearing aids can help by making sounds louder and reducing noise. It's important to protect your ears from loud noises to prevent further damage. Regular check-ups with an audiologist are essential for effective treatment.

These lip twitches or tremors that you are experiencing are quite common and for the most part, are harmless. On some occasions, these involuntary contractions are because of stress, fatigue, or even the overconsumption of caffeine. If the twitches persist or get worse, you can try relieving stress, getting enough sleep, and reducing caffeine. Make sure you are staying hydrated as well.

For some people, taking 4500 mg of methylcobalamin every day can be dangerous. If you take too much methylcobalamin, you might get an upset stomach, diarrhea, or a rash. Talk to your doctor if you feel unwell. They might change the amount you take or give you another kind of treatment. 

The chance of you getting the brain-eating amoeba from the water that touches your nose is very low. This amoeba infects the body via the nose and results in an uncommon infection. Symptoms include headache, fever, nausea, and if severe, changes in mental status. The best way to avoid this is not to swim in freshwater areas where amoebas may be present. 

Sudden hearing loss, like what you've described, is known as sudden sensorineural hearing loss. Common symptoms include hearing a loud buzzing sound and feeling as though your ear is blocked. The exact cause isn't always clear, but it may be related to infections or blood circulation issues in the ear. While there is no known cure, researchers in countries like Japan are exploring stem cell treatments as a potential future option. It's important to prioritize your health and stay in regular contact with your doctor.

It may be caused by the virus for instance, and your body is struggling with it, or it may be a simple dehydration issue. Drink water frequently, rest, and eat well-cooked bland foods (crackers being one of the great options indeed). If your symptoms do not improve, consult a doctor.

Dizziness when you get up and your fast heart rate could be due to low blood pressure. Headaches, back pain, and kidney pain can come from dehydration or stress. To keep your body hydrated, drink lots of water, eat good food, and sleep well. If the symptoms continue, go to a clinic for a health check-up.