You might have postural hypotension, dizziness that occurs when your blood pressure drops suddenly, especially after walking. This may cause you to feel unsteady or dizzy. You should drink plenty of water and move slowly. You may need to change your medicine or lifestyle to get help.

It sounds like he's dealing with multiple health challenges, including memory issues, difficulty walking, seizures, and a history of meningitis. Given this complex situation, it's crucial for him to receive proper medical attention and care.

When some­one breathes rapidly, tre­mbles, and feels unce­rtain, it could indicate anxiety or feve­r. Rapid breathing emerge­s as the body responds to stress. Shive­ring might represent the­ body attempting to raise tempe­rature. Hesitance could ste­m from worry or fear. To aid, try deep bre­aths, water consumption, and rest. Howeve­r, if symptoms persist, it's crucial to seek assistance­.

You are likely having some of the panic attack symptoms. In such moments, your body may tremble and be hot; you could also have a feeling of confusion. Panic attacks may be caused by factors such as stress, anxiety, or strong emotions. To help, try slow, deep breaths, calming thoughts, and talking to someone you trust about how you're feeling. 

You seem to feel weakened as your legs are not strong. Feeling sleepy most of the time and neck pain might be due to the problem in your neck bones. Not being hungry is also one of the consequences of the issue. Get some sleep and perform the exercises gently so as to reduce neck problems. The best way to maintain your energy levels is through eating small, healthy meals.

Muscular dystrophy is a condition where your muscles gradually weaken, making it difficult to walk, stand, and move your arms. It's usually inherited, so it often runs in families. While there’s no cure, physical therapy and medications can help manage symptoms and improve quality of life.

Your friend could be having a panic attack. A state where the person has rapid breathing, cold hands and feet, sweaty palms, and feeling unable to move is the most common one during a panic attack. The reasons may be different but the stress or anxiety stage is often the cause. Advise your friend to breathe slowly and deeply to stay calm and composed. Offer them strong reassurance and be a steady presence to help them through it.

You might have a sinus headache. Sinuses are spaces in your face that can get swollen and cause pain. Pressure can be made worse by bending over. Other symptoms can include a runny or stuffy nose. To feel better, you can try using a warm compress on your face, staying hydrated, and using over-the-counter pain relievers. If you feel this way all the time, it is best to go to a doctor to be sure.

The pain you feel could be caused by stress, not enough sleep, or even dehydration. Try to drink water, lie down in a calm place, and massage your temples gently. If it doesn’t go away or gets worse than before please consult with your doctor immediately.