The equivalent of "No news is good news" Radar.
Assume that the doctors know what they are talking about and if they are happy then take confidence from that.
I understand your fears though, and if this was my husband I would probably be saying lets ask the GP to do a PSA at 6 months, but that's just me.
Enjoy your beer. John has read recently that IPA is good for you and guess what he normally drinks. You got it !!