So I had to get a ct done tonight because I have had back pain that started yesterday right under my right rib in my back, and they thought kidney stone. I had a bunch of little things in the pee filter cup they gave me to use yesterday, all day today, and my urine was light brown at one point. Today it started burning when i peed which wasn't happening yesterday, 3 different times and hurt for 10 minutes after I peed, like burning on my pelvic bone and down below. Have had nausea, threw up.