too much of sex.
Cardiogenic shock causes the nausea.
There are many different causes of nausea. You may have nausea because you have eaten too much. You can also have nausea when you are coming down with a flu bug.
Heartburn
Hormonal imabalce, pregnancy, birth control pills etc. See your doctor for a blood test.
Botulism causes no gag reflex and decreased eye movement and nausea and vomiting.
Ingesting Ipecac
Swelling dizziness and nausea can come from a allergic reaction like a bee sting.
pregnancy
Ingesting Ipecac
NAUSEA
hyper thyroidism
Lot's of rain and cold weather causes heavy snow.