Well, I suspect the suggestion would be to wait a month (or maybe even 3 months) and test again. There is no rush.
It is starting to look like a trend, but too early to conslusively say so.
Yes, by all means, find a real good medical oncologist, preferably one who specializes in PC.
Where are you located?
I can tell you first hand that I know how upsetting this is!
Mel