Before a prostate exam, a urinalysis will be able to help. Milking the prostate for a culture may also help rule out any underlying infections. A complete physical examination by a physician including a rectal and prostate examination will help determine any irregularities or enlargement of the prostate. However, an enlarged prostate may usually present with straining during urination or dribbling and decreased flow of urine.In your case you have also mentioned of a burning pain and increased frequency.These points to a more irritative condition that may suggest an infection.Cold weather, coffee, increased fluid intake may also contribute. However, continue taking adequate amount of fluid since dehydration may also aggravate your condition.
A bacterial cause first have to be ruled out although viral causes may be possible.
Do keep us posted.
Thanks for your comments. Here are some more symptoms that may point to a virus too. Even though I often had a runny nose while out in the cold, I had nosebleeds a couple of times and I have very dry skin. This morning, I am aware of dry mouth and eyes and mild discomfort in my kidneys and lower back. It is extremely dry here now so I'll keep a kettle on for a while. Since last night when I started the gatorade, my water problems seem better but I'll have to see how it is in the cold. I like warm drinks so I'll try boiling water with a little gatorade for a while instead of coffee and water or ginger ale. My wife asked for more gatorade this morning and says she feels better with less irritation and is in a much better mood too. I'll have to read up on mucus membrane.