How old is he now? I know setters go through a wuss stage at about 6 to 9 months where everything seems scary and much of the world needs to be vanquished!
Maybe he's just going through a developmental stage?
"We are--each of us--dying; it's how we live in the meantime that makes the difference."
"It's not what you gather, but what you scatter that tells what kind of life you have lived!"
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."