Prostrate Worri

The problem you are referring to could be caused by one of several issues. Find a reputable urologist and let him/her discover the reason for your symptoms and then discuss treatment. These forums are great for support, but leave the diagnosing to the professionals.

Quite a few pain killing drugs affect your ability to pass urine

I agree with dalebf.

As already stated, pain killers like morphine can make it more difficult to pass urine. That said, if you're noticing a difference at the same dosage, it could also be a growing obstructive prostate and/or the beginning of a urinary tract infection. If you're not already seeing a urologist, now might be the time to go. Among other things, you want the doctor to measure your post volume residual (PVR) to make sure you're not retaining too much urine and therefore stretching the bladder and possibly compromising kidney function.

Jim

Yes that happen when we get older.  But the best thing you need to do is go see a Urologist and have some test.  You may have a prostate infection.  You need to have it cleared up so it does not cause any more problems  Ken 

Good advice.  Just go to the urologist sooner rather than later.  As mentioned, it could be a host of things.  Urologists may not know precisely what your situation is until they eliminate some things.  It's usually a bit of a process to find out what exactly is going on.