You’ll definitely have a dip, it’ll take about 3 days but your breastmilk will go back to normal. Like above said just have electrolytes and as much water as you can take. With both my kids I got the stomach bug while nursing and it’s terrible. At least with my daughter she had it too and wasn’t eating much so that helped her not be too upset and I pumped a lot. My son was so frustrated that I had a few days with minimal milk though 🤷🏻♀️
Yes, your body will just be super dehydrated, try and breastfeed as normal and drink as much as you can tolerate. Even some electrolytes if you can get home of them may help. Hope you get better soon x