Ok, I thought I'd provide an update since it's been over six stressful months since I started this thread.
This is the day I was supposed to have an MRI and then a follow up appointment with the Urologist. Per the Urologist's advice I had a PSA test a week ago and the results were down to 2.52!!
So, I emailed the Urologist and asked if I should still have the MRI done and he said no, but keep your appointment and let's talk about it. Today the Urologist did a DRE and said the prostate is still enlarged but was normal in all other respects. He believes the Tamsulosin that I've been taking has helped. An ultrasound that he did today shows that I am now emptying my bladder to a good level.
He said that when you have an enlarged prostate and you are not able to empty your bladder properly, this can irritate the prostate and cause high PSA readings. That's why he prescribed the Tamsulosin and a follow up appointment 6 months from then. I didn't know this and didn't read that in any research I had done.
No other actions planned at this time other than keep taking the Tamsulosin, get another PSA test in a year, and have a follow up appointment with the Urologist in a year.
What a relief!!
As an aside, I also changed the time of year I get my yearly physical from July when I am very physically active to November when I am not as physically active since various forms of physical activity such as bike riding can elevate PSA levels.
Thanks again for all those who have shared your experiences and given me lots to think about, especially opting for the MRI instead of a biopsy, if that would have been necessary.
Cheers!