Why does my father have ongoing head pain?

You have had a headache on one side of your head for about 3 days. That may be a migraine. Migraines are sharp pains in the head that happen on one side of the head after nausea or sensitivity to light. Saridon might alleviate the pain for a while, however, it is essential to find out about the causes of your migraines.  Notice any symptoms you have and whatever triggers lead up to your headaches. Avoiding heiks like stress, lack of sleep, favorite foods, or loud noises may help you stop migraines. Should headaches continue or deteriorate, a doctor is the right person to consult.

Your symptoms sugge­st vitamin deficiencies. Lacking vitamin B12 cause­s tingling hands/feet, digestive­ issues, and headaches. De­ficient vitamin D prompts shaky sleep se­nsations. These deficie­ncies likely cause your symptoms. To fix this, e­at vitamin B12 and D-rich foods. Your doctor may also suggest supplements to re­store levels.

Feeling drowsy, sleepy, and weak can be caused by both physical and psychological factors. Please consult an expert to get yourself evaluated and treated..

Sleep paralysis is a condition where you wake up but can't move or speak for a short time. It's quite common and usually not harmful. It can happen due to sleep deprivation, an irregular sleep schedule, or stress and anxiety. To prevent it, try to stick to a regular sleep schedule, relax before bed, and manage stress. If it becomes more frequent or concerning, you can consult a sleep specialist for help.

I recommend taking the medication as prescribed to you by your doctor. But if you experience any side effects from it or want to go for some other treatment, you can talk to your neurologist. He will suggest some other treatments based on your condition like lifestyle changes, CBT or acupuncture etc. Also, follow-ups is must. 

You are suffering from a tension headache. A typical characteristic of this problem is that you constantly feel like a tight band is wrapping around the head. A person may get this headache due to the brain's reaction to a stressful, tense environment, constant poor body mechanics, or eyestrain. One way to alleviate it is to relax, maintain good posture, and have screen breaks. Easy and gentle exercises for the neck can also be quite helpful. In addition to keeping your body hydrated and well-rested, you can treat yourself to a regular massage.