Need help urgently

Hey ladies, I know this is an app for periods and pregnancy and all that good stuff, but I’m asking for any advice or help you guys have!

I’m up to day 4 of not being able to eat because I just m throw everything up, I thought it was just a bug I had caught as I work in childcare, but I’m now second guessing that. I woke up this morning finally feeling better, decided to go and have some lunch, which was just a Salad wrap, and up it came an hour later. I am keeping everything but food down, and if the food actually stays down, it comes out the other end as liquidy as can be🤮 I’ve lost 6kg in 4 days and the last thing I wanna do is sit at the hospital for hours, I’ll take any advice you guys have😩😩