Lower Back Pain. Taken Advil. Pink Bleeding After Urinating

Hi I m Carmen and 27 yrs old. Last night I had I very bad pain that made me cry in my left lower back. The pain lasted almost 2 hrs until I had some advil n went to sleep laying on my stomach cause that s how it wouldn t hurt as much. I remember having one good meal and right before the pain I had chips with a really spicy salsa and lime.after that I had an Apple, had some squirt and the pain started. In the morning I went to the restroom and after peeing I wiped myself there was a light pink on the paper.