Has anyone had to go to the ER with dehydration?

I’ve had morning sickness the majority of the time, it’s nothing new for me. But I may have a stomach bug and have had diarrhea and vomiting for two full days. I haven’t been able to eat or drink anything. I’m going to call my OB in the morning to see if they think I should go to the ER. I feel like I’d feel better if I could get some IV fluids just to “catch up”. Curious if anyone has gone to the ER and if they actually did anything for you?