In-depth

Symptoms

Fatigue

Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.

Headache

Most headaches aren't caused by a serious illness, but some could be a sign of a life-threatening condition.

Nausea and vomiting

Sick to your stomach? Nausea and vomiting usually pass quickly but sometimes result from long-term or serious conditions.

Tests and diagnosis

CT scan

A CT scan is an imaging test that uses X-rays to produce detailed images of the inside of your body.

EEG (electroencephalogram)

Here's what to expect if you're scheduled for an EEG (electroencephalogram) — a common diagnostic test for many brain disorders, especially epilepsy.

Lumbar puncture (spinal tap)

Lumbar puncture (spinal tap) — Overview covers definition, risks and results of this procedure.

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

Treatments and drugs

Psychotherapy

Psychotherapy is one way to treat many mental illnesses. See how therapy is used and which type may be best for you.

May. 05, 2011