Re: PSA level going down
I would like to help you but need more specific information on the timings of the PSA tests. Your age, your case, if any, etc.
PSA 0.0 to 4.0 is treated as normal but there have been cases of men with PSA of 2.5 which was connected to prostate cancer (earlier stage). I recommend you to research the net for information on the matter.
Wishing you the best