Hello. This is motion sickness. It is because of some inner conflict between signal reaching brain from eyes muscles and inner ear. Heavy meal too increase chance of vomiting. Try to relax and focus on something stationary. Breathe slow and deep. You will get complete cure in homeopathy. Best wishes.
There are many causes of blood vomitting
some of the common causes are.
Ulcers in stomach, liver disease, tear in esophageal and stomach inner lining mucosa.
Cause can be determined by upper gi endoscopy.
1.before travelling do not take spicy or heavy meals.
2.do not sit facing backwards from your direction of travel.
3.sit in the front seat of a car.
4.do not read while traveling. 5.when traveling by car keep your gaze fixed on the horizon or on a fixed point
6. Do not smoke, 7.get fresh air if possible.
8.do not talk/ listen/ think abt motion sickness
9.listen to music and take deep breathing
10 solve some mental puzzle
11. Keep drinking small amount of water to keep hydrated
12. Can take carbonated beverage.
After taking the high hormonal emergency pill one gets withdrawal bleeding 5 to 10 days later, and then a new cycle starts. If this does not happen as well as period is missed one should do pregnancy test.
Abdominal pain, giddiness etc. May require blood test (serum hcg-beta) and if required ultrasonography to rule out ectopic pregnancy.
Best is to meet gynecologist.