I will definitely contact your doctor if that is happening. Because today I had my first fill and it was 6cc and my doctor did not have me drink water before I left the office and when I did drink water it was somewhat painful. Then when I took two bites of my lunch I ended up vomiting. I immediately called the doctor and when he called me back he advised me to just have soft foods the rest of the day and that if there was no change tomorrow that I needed to come in for an unfill.