1gm paracetamol I.v. BD got me through. I am 6 days past my vsg. 1st 2 - 3 days were not that bad for me. only the thirst part was bad my doctor didn't let me drink water for 24 hrs post op and the only thing i was allowed was to use wet gauze over lips which at times I sucked water from . next day was little sips day till further 3 days nothing but water .the only thing that brought screams from me was when he pulled out the surgical drain lines from the stomach and it feels like you have been stabed at few points on your stomach. Key for you dont gulp down take little sips it gives less gas