I am 38 yrs old. I'm female. Been pretty tired lately. My right side has been hurting for awhile. Not bad enough pain where you'd go to the e.r, but enough to know its there, along w low right side pain in my back. Pain same level as my side. I got up lastnight, had to pee, all the way from start to end it hurt while peeing,went to bathroom off and on thru the nite sometimes a lot of pee, sometimes just a drop. The next day. I felt fine. But when I pee now I get brown bloodclots and on the toilet paper is pink. Why are my clots brown,and not red? Is there a difference in the color of clots? And the shape of a clot?