Norovirus is a farking killer. It will take about a 3/4 days to get over the worst of it but expect vomiting, diarrhoea, vertigo/dizziness and a pounding head when standing up along with no energy, unable to keep fluid or food down and sweats. On the plus side it’s a great weight loss diet.
From experience, now you’ve had it, it will never leave you as the bacteria is now present in your gut. You’ll be more prone to getting it again over the next 12 months (what the doctor said) and if your have diabetes I imagine you will need to be careful.
Almost 2 years on and I in my case I have developed IBS like symptoms and my body can no longer handle spicy food or ibruprofen. If I eat anything slightly undercooked I know to expect another bout of illness about 24-48hrs later.