*Graphic TMI* but could use some help

So for the past 3-4 days I’ve had what I think is a stomach bug?? I am literally going to the bathroom every 20-45 mins and have had diarrhea and at first I thought it was something I ate but now I’m up every night rushing to the bathroom with severe stomach pain and it’s vomiting at the same time as going to the bathroom. I’ve tried my best to stay hydrated, I have no problem with water but I notice my urine is dark yellow. I’m so afraid to eat something now because my stomach will disagree within a few minutes and I have a 10 month old who I can’t keep doing a disappearing act on to rush to the bathroom. 16 1/2 weeks right now. Anyone else having this issue or have suggestions to make it stop? I’ve already done the “google search” for ways to stop but nothing helps and I don’t think its something to go to the doctor for.