I Currently Am Into My 6th Day With Gastroenteritis, Today

I currently am into my 6th day with gastroenteritis, today iv eaten small amounts of food but my stomach feels bloated and have the feeling of trapped wind which is very painful, yesterday I had diohoearea yesterday which was every time I drank water I constantly needed to go to the loo as I had an empty stomach.
What are the best this I can do to get past this uncomfortable stage, iv spent hours in weird positions just to try and move some trapped air.