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.

If you have been feeling mentally sick and highly stressed for an extended period, it is important to seek support from a doctor who can help you. they may recommend therapy, counseling, medication, or a combination of approaches to help you recover.

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.

Taking 1500 mcg vitamin B12 supplements may not be required if you do not have a B12 deficiency. B12 deficiency symptoms can involve such matters as depression, dizziness, and memory loss. A blood test is a way to see your vitamin B12 levels. Only in case of a deficiency, the correct dose will be pointed out by your doctor. 

The best solution for foot drop is usually an AFO (ankle-foot orthosis) brace. This brace helps to keep the ankle in the correct position and supports the foot, allowing you to lift it more easily. Your doctor may also recommend physical therapy or other treatments, such as electrical stimulation or surgery, to help strengthen and improve the function of the muscles in your foot and ankle.

Some people have trouble swallowing after a stroke. This condition is called dysphagia, and it's common after a stroke. If someone coughs while eating, it could mean that food is going into their airways instead of their stomach. A feeding tube can help for a while. Speech therapy often helps people regain their ability to swallow over time. Keep in touch with your doctors to get the best care plan.

It seems that you may have this condition called palpitations. You may feel that your heart is beating fast or irregularly in your hands, stomach, or legs in this case. Anxiety, stress, too much caffeine, or a lack of sleep may sometimes contribute to this issue. Relax, keep away from caffeinated drinks, sleep well, and visit your family doctor if you feel potential disturbances.

Could be related to a complex network of nerves in your head and face. One possibility is that the sensation could be due to referred pain or sensory connections between different nerves.

Your daughter's symptoms are typical of cerebral palsy which causes a lack of muscle coordination and also results in mobility problems. Those symptoms you named are the cause of an extra motor diagnostic test to be done, like hip reflexes to be tested, and a tossed foot drop. The most optimal way is physiotherapy to do work on muscle tone or strength and loosen tightness, to let your child move properly. In the case of consistent therapy, she will grow more independent and be able to use her muscles more easily so she can join you in activities.