My husband has it in his lungs! (Not liver) and lymph nodes, outside the prostate, bones, pelvis, spine and I forgot where else.
No pain though!
He's doing ADT pills and ADT shots and now chemo, the chemo is because it's all over his body I think.
He was diagnosed with stage 4 right when it was found and it seemed like he lit up like a Christmas tree on the PET scan! After starting the ADT shot and later pills, he faint cough went away, so I'm praying that his lungs are clear now, we don't know until he's done with chemo and they'll do another PET scan.
we know it's NOT in the liver because when first diagnosed, he freaked out and everyone and their friends and google suggested a bunch of supplements, and my husband took lots of things, to the point of wrecking his liver (blood test showed) he also got a liver ultrasound and it showed everything was fine, at that point he was only getting the monthly Firmagon shots but needed to start Zytiga, but can't if the liver is shot! Anyways it scared him enough to quit all the supplements and his liver healed itself over time and he was able to start Zytiga and now chemo too and the liver is still fine!
It doesn't sound good if it ever spreads to the liver!!