What Causes Pain In The Lower Back And Elevated PSA Level?

I am a 56yr male have been feeling bad for about 8 months tired unable to do normal activities my lower back has progressively been hurting worse my hips hurt when I walk. I went to a doctor saw a P.A. he ran some blood test my acidic level was high he said I had gout and arthritis my PSA level was 4.5 so he reran the test 6 weeks later and it had jumped to 8.4 also my RDW is high its 13.5 my MPV is also high at 11.1 and my PLT is low at 143 he wanted to monitor the PSA he didn t mention anything about the other levels. My insurance has changed so I have to find another doctor so do I need to be with these levels.