Why am I experiencing dizziness and headache?

Holding your breath for a long time can sometimes make you dizzy or suffocate, nevertheless, it is improbable for you to suffer from a permanent brain injury. Your brain which requires oxygen is doing well because you have been receiving good oxygen levels. If you're feeling worried, try some relaxation techniques like deep breathing or talking to someone you trust. 

Getting tap wate­r in your nose won't give you brain-eating amoe­ba. When water ente­rs through nostrils, it brings sensation of mental clarity due to te­mperature differe­nce. However, that amoe­ba is very uncommon, causing severe­ signs like intense he­adaches, fever, and disorie­ntation. Avoid letting water ente­r the nose, especially in warm fre­shwater regions. But fee­ling refreshed afte­r accidental nasal water entry doe­sn't indicate the presence­ of that frightening amoeba.

If you often forget things quickly, it could be due to something called short-term memory loss. Symptoms include difficulty remembering recent events or information. This can happen due to stress, lack of sleep, or not paying attention. Try to practice good sleep habits, reduce stress, and pay attention when you learn new things. Writing things down can also help you remember better.

Setting a proper sleep schedule and reducing screen time are good steps, but sometimes additional help is needed. Since the neurologist's treatment didn't suit you, I recommend visiting a sleep specialist. They can provide personalized advice and alternative treatments to improve your sleep.

This can lead to a condition known as salt poisoning. Signs may include extreme thirst, vomiting, weakness, and confusion. When your friend does not answer calls, it is a severe symptom. The brain and body could be affected. Please seek immediate medical attention. This is an emergency that may be fatal.

It is not very likely to get intracranial high blood pressure from a single 200mg dose of doxycycline. Intracranial high blood pressure is an uncommon side effect that may lead to headaches, changes in vision, and nausea. Adequate hydration can help in its prevention. Don’t forget to follow your provider’s instructions when taking this medicine and inform them about any worries you might have. 

A hemifacial spasm cause­s one side of your face to twitch involuntarily. This happe­ns when a nerve ge­ts irritated in your cheek are­a. Although uncontrolled facial twitching is unpleasant, treatme­nt options like Botox injections or surgery e­xist. These can help re­lax the affected ne­rve, stopping the spasms. Such treatme­nts aim to provide relief, improving your quality of life­. So do not lose hope, as permane­nt solutions are available.

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.