Feeling super nauseous after eating and getting worse HELP

I just googled increased nausea during the second tri and now I’m freaking out about hyperemesis gravidarum and the complications. I turned 17 weeks on Thursday. On Wednesday I woke up with crazy diarrhea and threw up for 24 hours couldn’t keep anything down. Woke up today (Saturday) with more diarrhea and vomiting. I had called the doc and they said just ride it out and keep hydrated, thinking it was a bug. Now I’m just really worried that it’s not going away. This is my second pregnancy, my daughter just turned 1 on feb 4. I had hardly any nausea and no vomiting with her. Anyone else experiencing something similar? Need advice 😣💗