You don't say what the trouble, but if it was like mine this may interest you.
A few months ago I suddenly realised something was amiss when I kept waking up during the night needing a pee. Honestly, it was really bad and getting me down that I could not have a full night's sleep.
I was going to visit the doctor, but while looking at a health supplements site, I saw something that might help, so I ordered some, and it did - within a week I was sleeping all thru the night again.
I took the Saw Palmetto, but I have included a full link for you to read for yourself.
BTW, I don't constantly take them - haven't took any for ages, but I still have no problems.
http://www.healthydirect.com/category/Category -Men/d.jsf