My sense of taste is not good. i vomit everytime. why is that doctor?

Dysgeusia: Dysgeusia is a condition in which a foul, salty, rancid, or metallic taste sensation will persist in the mouth. Ageusia is the inability to detect any tastes, which is rare. Often, people who feel they have a problem with their sense of taste are experiencing a loss of smell instead of a loss of taste. Read more at: www.medicinenet.com/taste_disorders/article.htm