When I wake up in the night with an urge to urinate and I try to hold it for 5 more minutes, I feel something moving in my intestinal area or the pelvic area and all of a sudden, my urge to urinate decreases and when I go to the bathroom to urinate, I do not feel I have passed a lot of urine with respect to the urge that I had earlier when I just woke up. Does urine go back to the kidneys and back to bloodstream if the bladder is full and we hold the urine?