Hi Neil,
Welcome to the forum. I'm sorry that you've had to find us, but I'm glad you have. There are a lot of kind and supportive people here who'll try and assist you.
Have you got a copy of your MRI scan? The info you've given seems very vague.
I had the exact symptoms you've got when I was about your age it was diagnosed as prostatitis.
Your PSA is a little high and your prostate is enlarged, this can be caused by other non cancerous conditions.
Your biopsy should clarify the position.
Its awful waiting for results and I appreciate your anxiety.
Just take one step at a time because it is pointless worrying about things that may or may not be found.
I would advise you to ask for copies of all test reports and consultant's letters.
Keep us updated and the best of luck mate.