3 day hangover

I (25f) went out and overdid it on Friday. Over the course of ~5 hours I had 3 margaritas, a high noon and a soju. Not a crazy amount but I weigh about 110 lbs and hadn’t eaten at all that day. Saturday I couldn’t hold anything down, even small sips of water. Thats not that abnormal for me though. I often throw up when hungover.

What’s been worse about this one is that I was still vomiting yesterday morning and continued to feel exhausted and weak all yesterday (Sunday). I did eat a lot and drink lots of fluid though. Then today I woke up after not sleeping well and I’m having diarrhea, feeling very dizzy, and my nose is bleeding.

I know that this sounds like dehydration but I don’t understand why I’m still dehydrated, or what I should do now.