Maritza (aka-snuggleup) nice to see that you are working on this as a team. I am sure you meant to say his post pathology score was higher after it was taken and reviewed, and not his psa score. Hey, with all the craziness happening that is easy to mistate something like that.
The only qualifications I might have as a doctor, would be my Phd~ P _iled h _igh on d _rugs while fighting this PCa, it is purple haze at its finest. Get the lung checked out via scans and anyother reasonable methods so as to know. Do not let the unknown overwhelm you if at all possible, focus on goodness and higher powers.