Sounds like he's got some health issues that need to be checked out...but he's not ready to do so. The man doesn't want to accept that he's getting older and w/aging, comes some health issues. BTW, yes, he's at the age where there can be a decline in his levels. You might want to do an internet search and read on men's issues so that you have a better understanding of what he might be dealing with.
If he mentions the pains again, gently suggest that he might want to consider seeing a physician. Don't push too hard, gently suggest it.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
