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A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.
The most familiar kind of paresthesia is the sensation known as "pins and needles" after having a limb "fall asleep". ... chest or abdominal pain, or pelvic pain). ...
Sleep paralysis is a state, during waking up or falling asleep, in which a person is conscious but in a complete state of full-body paralysis. [1] [2] During an episode, the person may hallucinate (hear, feel, or see things that are not there), which often results in fear. [1] [3] Episodes generally last no more than a few minutes. [2]
Pain, cough, and fever ensue—and so does a sharp or stabbing chest pain that’s worse with deep breathing or coughing, particularly if the left lung is infected. A pulmonary embolism is a blood ...
Chest pain that gets worse when you inhale deeply is called "pleuritic pain," Martin explains. Pericarditis can cause pleuritic pain, but this type of discomfort is typically related to lung ...
“Pain that is reproducible by pressing on your chest is likely due to inflammation of the chest wall or muscle joints,” says Dr. Khandwalla. Some conditions cause you to feel tender or hurt ...
The word hypnagogia is sometimes used in a restricted sense to refer to the onset of sleep, and contrasted with hypnopompia, Frederic Myers's term for waking up. [2] However, hypnagogia is also regularly employed in a more general sense that covers both falling asleep and waking up.
Chest pain is pain or discomfort in the chest, typically the front of the chest. [1] It may be described as sharp, dull, pressure, heaviness or squeezing. [ 3 ] Associated symptoms may include pain in the shoulder, arm, upper abdomen , or jaw, along with nausea , sweating, or shortness of breath .