From 1 week i am getting cough and vomiting immediately after eating food and sometimes at night whatever i eat is mostly coming out no other symptoms?

See a Doctor: Since you are pregnant you maybe having what is called morning sickness. Nausea, upset stomach, queasy feeling. This is common in pregnancy. With the metformin I take it your needing it for Diabetes? From your med list you are pregnant, with diabetes and anemia? In the face of a new cough and vomiting please see your Doctor. You unborn could be at risk. You need to follow up soon.