I've noticed recently that my boyfriend's urine flow has changed. He is 26 years old, slightly overweight, but fairly healthy overall. His flow use to be steady and effortless whereas now it is disrupted, sort of like "stop and go". When I asked him how it feels, he said, "sort of like blockage". Being the "manly-man" that he is, he refuses to go to the doctor, but I know something is up. Any info is greatly appreciated.