hello and thank you for asking HCM,
I understand your concern. You didn't mention when was your last period and according to your symptoms it could be that you are pregnant. All these symptoms like vomitting,
dizziness, brown line going down from belly button to pubic area are normal symptoms in
pregnancy. My suggestion is to make a pregnancy test and visit your gynecologist either the test is positive to make sure that everything is ok with your pregnany, or if the test is negative to make proper examinations of these symptoms.
I hope this asnwer was helpful to you.