UTI???

eLLee • Emilee. 25. Married. TTC #1. Follow my infertility journey on YouTube down below!
I went to the doctor today and they said I had a UTI. I've been throwing up and had the chills from it. They gave me a dark colored pill that turns my pee orange and they gave me an antibiotic. I took the dark colored pill twice and it still burns when I pee. They said it should work as soon as I take it. Should I go back tomorrow if it still feels like this? I'm also still nauseous and have the sweats and chills. I'm a hypochondriac so no mean comments please.