I started noticing, after symptoms of UC began occurring, that if I go to the bathroom (mainly pee) I will leave then go back & see purple stains from splash on the seat & under the seat. My urine is yellow/pale yellow but these mysterious stains show up. Has this happened to anyone else? I also do not have abdominal pain, save the gurgles & gas associated with UC (I'm assuming). Certainly not acute pain.