What causes irritability and unable to concentrate? 17 possible conditions

Viewing 17 of 17 results

See a list of possible causes in order from the most common to the least.

1

AIDS

HIV causes progressive failure of the immune system, making the body far more susceptible to infections and cancer.

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2

Concussion

This condition is considered a medical emergency. Urgent care may be required.

A concussion is a mild traumatic brain injury. Usually it occurs after an impact to your head or after a whiplash-type injury. A concussion can cause many severe symptoms that affect brain function.

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3

Lead Poisoning

Lead poisoning occurs when lead builds up in the body. It is serious and sometimes fatal. Lead can be found in paint, art supplies, and other items. Poisoning may cause severe abdominal pain, seizures, and more.

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4

Acute Stress Disorder

In the weeks after a traumatic event, you may develop an anxiety disorder called acute stress disorder (ASD). ASD typically occurs within one month of a traumatic event. It lasts at least two days and up to one month...

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5

Post Concussion Syndrome

Post-concussion syndrome, or post-concussive syndrome (PCS), refers to the lingering symptoms following a concussion or a mild traumatic brain injury. Symptoms vary but include headache, dizziness, and depression.

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6

Dementia Overview

Dementia may affect memory, thinking, language, judgment, and behavior. Mental impairment must affect at least two brain functions to be considered dementia.

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7

Post Traumatic Stress Disorder (PTSD)

Post-traumatic stress disorder (PTSD) is an anxiety disorder that occurs after experiencing or witnessing a traumatic event. PTSD can cause disruptive symptoms of panic, increased arousal, and mental/emotional problems.

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8

PMS (Premenstrual Syndrome)

Premenstrual syndrome (PMS) is a condition that affects a woman

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9

Nicotine Dependence

Nicotine addiction occurs when a person becomes addicted to nicotine, which is a chemical found in tobacco. The addiction is physical, mental, and behavioral.

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10

Sleeplessness

Sleeplessness, or insomnia, is a serious sleep disorder. It can mean the inability to fall asleep or stay asleep throughout the night, or the tendency to wake too early before having gotten enough sleep.

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11

Generalized Anxiety Disorder

People who suffer from generalized anxiety disorder, or GAD, worry uncontrollably about common occurrences and situations. The condition may also be called chronic anxiety neurosis.GAD is different than normal feeling...

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12

Delirium

This condition is considered a medical emergency. Urgent care may be required.

Delirium is an abrupt change in the brain that causes mental confusion and emotional disruption. It makes it difficult to think, remember, sleep, pay attention, and more. You might experience the condition durin...

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13

CFS (Chronic Fatigue Syndrome)

Chronic fatigue syndrome (CFS) is a debilitating disorder characterized by intense fatigue that cannot be cured with sleep. Mental and physical activities may cause your symptoms to worsen. When your fatigue cannot b...

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14

Bipolar Disorder

Bipolar disorder is a serious mental illness marked by extreme shifts in mood, from mania to depression. In mania, a person may feel extremely excited, impulsive, euphoric, and full of energy. Depression might brin...

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15

Migraine with Aura

Migraine is a disorder characterized by repeated attacks of severe headache. A migraine headache causes throbbing or pulsating pain, usually on only one side of the head. These headaches are often associated wit...

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16

Anxiety

What is anxiety? Anxiety often manifests itself as an apprehension about daily life. Learn the basics with this overview of the types of anxiety disorders.

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17

Postpartum Depression

Postpartum depression affects as many as 13 percent of new mothers. In the U.S., that's half a million women. Learn about symptoms, causes, risks, and more.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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