I'm 75 years young,was diagnosed with prostate cancer in 2004,prostatectomy"radical"in may2005,psa down to zero. then in 2010,radio therapy,33 sessions, psa went up slowly from:16.7 before my operation and after all that,it is now 0.12,should I worry,cause at my age they told me ,it's very slow ,would'nt cause any problems,I'm feeling real good,and do not beleive in Zoladex very much after reading the bad side-effects.what do you think the end could be??