<|im_start|>system
You are a helpful AI assistant.<|im_end|>
<|im_start|>user
You know that feeling like when your  feet or whole body do not feel anything, and you can't exactly say where they are? Happens when you're sleepy or concentrated on something and not moving much. Is there a name for it? Any scientific explanation?<|im_end|>
<|im_start|>assistant
The sensation you're describing, where your feet or your whole body feel numb or disconnected, can be referred to as "numbness" or "tingling" in scientific terms. It is commonly associated with a condition called "paresthesia."

Paresthesia is an abnormal sensation that can manifest as numbness, tingling, or a "pins and needles" feeling. It often occurs due to temporary nerve compression or irritation. When you're sleepy or deeply concentrated on something, your body may be in a more relaxed state, and certain nerves may be affected, leading to this sensation of numbness or reduced awareness of your body's position.

One possible explanation for this phenomenon is related to sensory processing in the brain. When you're engrossed in a task or experiencing drowsiness, your brain may prioritize processing information related to the task at hand or focus on essential sensory input, while reducing attention to non-essential sensations. This selective attention may contribute to the reduced awareness of the position or sensations in your feet or body.

Additionally, when you're not moving much, blood flow to certain areas of the body may decrease, which can further contribute to the sensation of numbness or reduced sensory perception.

Occasional episodes of numbness or tingling during periods of concentration or sleepiness are generally normal. However, if you experience persistent or concerning symptoms, it's recommended to consult a healthcare professional for a proper evaluation and diagnosis.<|im_end|>
<|im_start|>user
Yes, please tell me something more about Narcolepsy.<|im_end|>
<|im_start|>assistant
Narcolepsy is a chronic neurological disorder that causes excessive daytime sleepiness (EDS). People with narcolepsy may also experience cataplexy, sleep paralysis, and hypnagogic or hypnopompic hallucinations. 

Narcolepsy symptoms

Excessive daytime sleepiness is the most common symptom of narcolepsy. People with narcolepsy may feel sleepy all day long, even after getting a full night's sleep. They may also fall asleep suddenly and without warning at any time of day, even while driving, eating, or talking.

Cataplexy is a sudden loss of muscle tone that can be triggered by strong emotions, such as laughter, surprise, or anger. Cataplexy episodes can range from mild (e.g., drooping of the jaw or eyelids) to severe (e.g., collapsing to the ground).

Sleep paralysis is a temporary inability to move or speak that occurs as you are falling asleep or waking up. Sleep paralysis can be frightening, as you may be aware of your surroundings but unable to do anything about it.

Hypnagogic and hypnopompic hallucinations are vivid, dreamlike experiences that occur as you are falling asleep or waking up. Hypnagogic hallucinations are more common than hypnopompic hallucinations. They can be visual, auditory, or tactile.

The exact cause of narcolepsy is unknown, but it is thought to be caused by a combination of genetic and environmental factors. There is no cure for narcolepsy, but there are treatments that can help manage the symptoms. Treatment options include medication, lifestyle changes, and cognitive behavioral therapy (CBT).

If you think you may have narcolepsy, it is important to see a doctor for diagnosis and treatment. Early diagnosis and treatment can help you manage your symptoms and improve your quality of life.<|im_end|>
<|im_start|>user
What type specialist should i have to visit for these types of ailments<|im_end|>
<|im_start|>assistant
It would be best for your primary care physician or general practitioner to assess you and your symptoms, and then direct your care accordingly.  

Based on their assessment, they may or may not refer you to one or more of the following:
- a neurologist, for nerve compression or neurological disorders or neuropathy
- a sleep specialist, for sleep or wakefulness abnormalities 
- a cardiologist or vascular surgeon, for circulation problems
- an orthopedist or physical therapist or kinesiologist, for nerve compression or other anatomical causes 
- or some other specialist, based on their specific diagnosis or concerns

Is there anything else I can do to help?<|im_end|>