People can have pain when trying to move limbs that had chronic pain {learned pain} [Ramachandran, 2004].
Fifth cranial nerve can feel sharp pain or shock in jaw or cheek {neuralgia}|. From 6 to 12 years, children can have restlessness and/or twitching, symptoms of tension from repressed needs or conflicts.
Insula senses pain and anterior cingulate has emotions, so damage to path from insula to anterior cingulate allows pain sensations but causes no emotions {pain asymbolia} [Ramachandran, 2004].
Skin can feel burning, prickling, itching, tingling, and numbness {paresthesia}, usually in extremities.
Meningeal blood-vessel swelling, which stretches nerves, causes primary headaches {headache}| {primary headache}. Hormones, stress, and little sleep act on brain pain centers to produce serotonin and norepinephrine and cause blood-vessel swelling. Sinus pressure, pinched nerves, or irritation causes secondary headaches.
Headaches {migraine}| can be strong pains at one point.
symptoms
Days or hours before onset, mood, behavior, wakefulness, appetite, bowel activity, and/or fluid balance change. In 10%, sensation disturbances, lasting for 20 to 30 minutes, precede headache. Sense disturbance and pain can be on same or opposite body side.
biology
Migraines are non-bacterial inflammatory responses, which release neurokinines or other pain-producing substances and dilate meningeal and scalp blood vessels.
Progressive cortical blood-supply loss, or neuron intercellular-fluid neurochemical disturbance, can be causes. In 20%, foods containing biogenic amines or complex phenols can be causes. Vasoactive monoamine serotonin and other neurotransmitter changes can be causes.
causes
Causes are stress, glare, flashing lights, striped patterns, menstrual cycle, and sexual activity.
effects
Migraine can cause nausea or vomiting. Recovery from migraine takes hours.
age
Attacks typically begin before age 30 and decrease in frequency with age.
After small injuries, people can later have acute pain, swelling, inflammation, and paralysis {complex regional pain type 1} [Ramachandran, 2004].
After small injuries, people can later have acute pain, swelling, inflammation, and paralysis {reflex sympathetic dystrophy} [Ramachandran, 2004].
4-Medicine-Disease-Kinds-Organ-Nerve
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Date Modified: 2022.0225