Another effect of sleep deprivation that I have felt is that when sleep deprived, the body's tollerance for alcohol, (and probably other drugs), is much lowered, so a small amount of alcohol will have more effect on you when you're very tired.
Mastoiditis can cause pain behind the ear and down the neck. MedlinePlus states that mastoiditis is an infection of the mastoid bone of the skull, which is located directly behind the pinna or the outside portion of the ear.hoto Credit Jupiterimages/Photos.com/Getty Images. Numerous conditions can cause pain behind the ear and down the neck. According to MedlinePlus, a publication of the National Institutes of Health, neck pain can travel to other parts of the body, such as the shoulder, arm and head.
Other Causes. A cold and sore throat will cause lymph nodes behind ear or the neck as well as at the base of your skull to swell. If you get an allergic reaction to anything including drugs, chances are that lymph nodes behind ear might swell alongside other symptoms.ancer. Some types of cancer cause the lymph nodes to swell. This is mostly a sign of blood cancers and lymphoma that cause malignant cells to flow through the whole body. Once the swelling is trapped behind the ears, a growth or tumor might develop there, putting your body on high alert.