I'm almost 25 weeks and have been suffering from terrible heartburn night and day it literally keeps me awake / wakes me up. I have small meals and dont eat lateat night, it's just constant. I've been using gaviscon and rennies but they only work for a really short time. I was going to go and buy some omeprazol but was concerned about its safety after reading on line. Does anyone know more about it and would it definitely work anyway? I'm miserable 