Awww, bless his heart!!!

Bless your heart!! You are such a great mommy to Alfie, Tracey!! Hugs.
I agree that the anesthesia is messing with his "poop & tail" actions. It actually caused Mandie to be a little constipated so I had to give her some fiber and mineral oil. If he's still struggling to poo tomorrow, you might want to rub a tiny bit of mineral oil on his bum and feed him some green beans. If he seems to be struggling and/or hurting too much when trying to poo, give him a tiny tiny bit of mineral oil on a couple of those green beans.
Praying for you to get the answers you need to make Alfie feel better.