Some BPs won't poop for weeks...I wouldn't worry about him not pooping. When he's ready his rear end will get swollen-looking, but usually you'll just find a nice poop somewhere when you don't expect it.

Was/is he blued over when he was striking? It's not uncommon for snakes to get testy/defensive when they're in blue: they can't see as well! So once he sheds he should go back to normal. I wouldn't mess with him when he's in blue: just leave him be. No worries.