Hi. I finished two weeks of radiation today. I do feel better but exhausted. Question I have is I had my PSA checked Wednesday. Last month it was 2.55. Mine never drops low like many of you talk about with Lupron, Prednisone, Zitiga. This month it jumped to 4.45. have others experienced a jump during radiation? None of my nurses seem to know, neither at radiology or oncology.