This is just my story, buddy, so take it for what it is worth (2 cents), it may not apply to you.
I appreciate where you are coming from. I had a great list of reasons why my PSA was elevated at the time of my second PSA test in only six months. Six months earlier, my PSA was 1.2 and the second test was 4.3! I did the second PSA test in conjunction with other blood tests required by my family doctor.
When seeing my urologist I had excuses about sexual activity prior to the test, another infection I had at the time in my body, my dad had prostatitis in his history, etc. My doctor, a very good soul, listented to me patiently. She had several years of experience with as a PCa surgeon and I could tell she was not buying my many excuses. I wanted so bad for it not to be PCa that I came up these reasons for such an elevation!
She did another DRE to get some more info for her sake. There was a slight lump, but not well-defined. We discussed a few more things and then she went out of the exam room for a few minutes. She came back in and said "I think we need to do a biopsy." I asked many questions including, "How concerned should I be about this?" She said, "Look at it as the glass being half full, over 50% of the tests come back negative." I felt a little better, but as you can see, the rest is history!
I'm so glad I feared cancer more than the biopsy. In the end, I was really grateful to have a doctor who erred on the side of caution. If you do have PCa, you really want to catch it early. If you don't have it you'll be fine... That's it.
Your decision now is how you go about determining that you're a-ok... and that is your decision alone. We cannot judge you by what you decide. You've got to feel comfortable after all the results are in from your other opinions or tests.
What ever happens... I think you can tell that people here care... whatever they may think you should do at this time... and that is what is so great about the people in the forum!
God bless you, KC.