Get an appointment, get it done. 40 -45 is prime time for prostate problems to start. It's really not all that bad. After a few questions and the usual blood pressure and abdominal thumping and a couple of easy questions, you'll be asked to:
Drop your drawers and bend over the exam table. He'll lube one finger, push it in (a little discomfort, but nothing you can't live through), about 10 to 15 seconds to find and examine the gland with his gloved finger, and voila, you're done except for wiping up the KY gel. Piece of cake, you're good for a year at least.
You DON'T want to let it slide! Get an exam done as a baseline and then every year or two after, as the doctor suggests, you can get a checkup. An ounce of prevention, and all that.
BD