Connection b/w bowel, bladder and ed.

I just wanted to know is there a connection between bowel, bladder and erection. My age is 30 and I suffer from all of the dysfunction. I went to one urologist whom I asked the similar question. Instead of answering he asked which is on high priority so that I can treat for...I'm shocked because I said i need treatment for all of the above. I suffer from hypotonic/atonic/shy bladder syndrome which doesn't contract strong enough to release urine with pressure. I suffer from weak stream along with I think irritable bowel syndrome. Once I finished with bowel I feel better and my lower back pain disappear for a while..please let me know how to treat for all of the above conditions and should I get married is the biggest question? I don't want to ruin someone's life...urologist said u can get married and he told he will treat ed with medication. Please let me know accurately what should I do