i m 20. This few months, my urine stream has quite weired stream(as shown as below). At 1st , the stream is straight, but there have a "x shape" at the path. However, it will become straight again. 1.Is that normal? 2.Is that a disease? 3. Who have same experience? 4. Is that cause by masturbate? 5.Can u share your urine stream picture?