She finally stopped around 2:30 and we got a little sleep. She woke up in good spirits wanting waffles. She's sipping on pedialyte so I think we're ok! Hopefully it doesn't start back up tonight.

Sounds like a typical stomach bug. It's common for it to come and go and come back again in kids. Keep her hydrated. Little sips of water every 15-30 min, even if she brings it back up. Bugs can last 3+ days. I don't know what the weather is where you are but heat can make it worse too. Hydrate! I was told no food until they haven't vomited for 24 hours. The belly lining needs to heal.

If you want private message me! My son did this for two months and after several pediatrician visits we have fixed it...or at least I think so. Almost a week no vomiting

Take her to the ER. My daughter had this, she would not stop throwing up and shes 2. They told me to bring her in asap. She was throwing up so bad she had nothing left to throw up. Goodluck to you LO!

Most doctors have an after hours call line with a nurse. But unless she's projectile vomiting, I'd just let whatever is going on run its course. Keep her hydrated the best you can and give her snuggles.

I have no experience with this but I hope it's nothing serious and I'm bumping for you!