Quoting XJS♡6.14:" I never peed blood when I had kidney stones, but it was the WORST pain of my life. Much worse than labor IMO. It was like a stabbing pain in my sides..where the kidneys are located. Maybe a bad UTI?"
Quoting Take me as I am:" Sounds like stones. I get them. If your friend drinks mt. dew tell them to stop. Also call the doctor because sometimes if they do not pass they need to go in and remove them."