should I go to the ER? 18F

Hello, so for the past two, now going on three days i’ve been experiencing what I believed to be at first, food poisoning, but what now i’m sure is a very bad UTI. I’ve vomited twice, been experiencing intense abdominal cramping and discomfort so much so I haven’t been eating much and when i do it’s to take meds.

yesterday I got antibiotics for it and a numbing agent, and i’ve taken two doses of antibiotics since then. sitting in the shower on the floor helps but I just don’t know what to do. it’s been like this since thursday and I just want to feel better again.