A variety of causes can make you vomit or feel dizzy. 1  Affected cardiac output: When your heart isn’t pumping properly, your blood pressure can drop. This can result in dizziness and vomiting.  Anxiety: Intense feelings of anxiety can lead to physical symptoms, such as dizziness and vomiting.
http://www.healthline.com/health/dizziness-and-vomiting
Causes of dizziness and vomiting can include: 1  Affected cardiac output: When your heart isn’t pumping properly, your blood pressure can drop. This can result in dizziness and vomiting.  Anxiety: Intense feelings of anxiety can lead to physical symptoms, such as dizziness and vomiting.
http://www.healthline.com/health/dizziness-and-vomiting
1 Inflammation in the inner ear can cause dizziness that leads to nausea and vomiting.  Medications: Medications including sedatives, chemotherapy, tranquilizers, and anti-seizure medications can all cause dizziness and vomiting.
http://www.healthline.com/health/dizziness-and-vomiting
These initials stand for benign paroxysmal positional vertigo. BPPV occurs when tiny calcium particles (canaliths) clump up in canals of the inner ear. The inner ear sends signals to the brain about head and body movements relative to gravity. It helps you keep your balance.
http://www.webmd.com/brain/vertigo-symptoms-causes-treatment
Dizziness, or feeling unbalanced or lightheaded, and nausea, the feeling that precedes vomiting, are symptoms of numerous of conditions. In some cases, dizziness and nausea are brief, mild and temporary symptoms, caused by riding on a roller coaster or consuming small amounts of harmful bacteria. In severe cases, dizziness and nausea may indicate a serious health condition that requires medical attention.
http://www.livestrong.com/article/105594-causes-nausea-dizziness/
1 Anxiety: Intense feelings of anxiety can lead to physical symptoms, such as dizziness and vomiting.  Inner ear inflammation: The inner ear is responsible for helping maintain balance in the body. Inflammation in the inner ear can cause dizziness that leads to nausea and vomiting.
http://www.healthline.com/health/dizziness-and-vomiting
In a few cases, surgery may be needed for vertigo. If vertigo is caused by a more serious underlying problem, such as a tumor or injury to the brain or neck, treatment for those problems may help to alleviate the vertigo.
http://www.webmd.com/brain/vertigo-symptoms-causes-treatment
BPPV can occur for no known reason and may be associated with age. Meniere's disease. This is an inner ear disorder thought to be caused by a buildup of fluid and changing pressure in the ear. It can cause episodes of vertigo along with ringing in the ears (tinnitus) and hearing loss. Vestibular neuritis or labyrinthitis. This is an inner ear problem usually related to infection (usually viral).
http://www.webmd.com/brain/vertigo-symptoms-causes-treatment
Nausea and dizziness are common symptoms of food poisoning that may appear promptly after eating or within 12 to 72 hours. Additional symptoms of food poisoning may include vomiting, diarrhea, abdominal cramping, body aches and fever.
http://www.livestrong.com/article/105594-causes-nausea-dizziness/
1 Medications: Medications including sedatives, chemotherapy, tranquilizers, and anti-seizure medications can all cause dizziness and vomiting.  Vestibular migraine: Migraines are headaches that can cause intense symptoms, including dizziness, nausea, and sensitivity to light and noise.
http://www.healthline.com/health/dizziness-and-vomiting
causes of nausea and dizziness
Riding  on a roller coaster or consuming small amounts of harmful bacteria can cause nausea and dizziness. Causes of nausea and dizziness can happen by riding on a roller coaster or consuming small amounts of harmful bacteria.