I need to to vent. 😭

Bare with me. I was under the impression I had a UTI and had an appointment with my doctor this afternoon. 30 minutes before that, I fell over on the floor at work in serious pain and nausea. My coworker took me to the ER. I got there and they ran urine and blood. They said my urine is clean, just elevated while blood cell count and my blood is fine. I’m still laying on the bed in horrid pain. I just finished a miscarriage two weeks ago. They do another US, whole pelvic exam. Everything was fine. Pumped me full of fluids and pain relief and sent me on my way after 5 hours. I still feel like I have a UTI.. this pain is awful.. they said “come back if it’s bad and we’ll do a CT scan.” I’m just confused and upset, and I truly don’t know what to do. 😕