Gary-
My stats are fairly similar to yours, PSA up and down, % free PSA on the low side. At my last uro appt last December, doc attributed elevated PSA to minor inflammation. Even with courses of ibuprofin and antibiotics, PSA would rise then fall later. 2 biopsies found nothing. Uro said to see him again in a year with repeat PSA test. I'll have my GP retest it 6 months from last test just for some peace of mind. I really freaked when my PSA/%free PSA tests started to look bad, convinced myself I had cancer.
In Walsh's book he states that PSA swings are usually indicative of a benign condition, hopefully that's the case for us.
Dan