I've been living this journey for three years now, if you want some insight want might be in your husbands mind, since he's not communicating, you might tyr reading my blog? The link is below, start at the first entry (Feb 2005) look at the bottom of the left side. Maybe it will help?
To very simplistic, the is hell, every day. It's a hard fight.
If I read your post correctly, he has had this pain for months? It's just my opinion, but he needs to have this looked at. It could be the medication, it could be the cancer? I'm not sure, but extended pain is not right.
PSA 219, bone mets, lymph node involvement
Gleason Score: 7
Lupron, Keto_Hydrocortizone, Avodart