Nonstop vomiting, i feel like DEATH

An

I’m 11 weeks and 3 days, my nausea isn’t happening nearly as often as it was when i was around 7-8 weeks. The only problem is that when my nausea DOES hit, it’s so awful. No appetite for anything, can’t hold even the lightest foods OR DRINKS down, can’t even hold down my nausea medicine. It’s horrible, what can i do??