are physiological problems during pregnancy
due to increased level of progesterone
,HCG hormones in body.
Pregnancy aggravates gastroesophageal reflux .
To control this problem -
First thing is-Don't take heavy n spicy food & increase frequency of short meals instead of having single heavy meal.
If,still,having vomitting,then,take these medications,if,even after that could not be controlled,consult your gynaecologist.