Hind leg whats wrong with you?

Getting too emotional down here... monitoring bb in progress.
I can used up one tissue box liao. The fear, thoughts, pain and ache in me reach limit. Broke when finally im alone with bb.
His conditions did not improved. I expected his painkiller injection to last til evening but it did not even past dawn. The vet prescribe a nsaids(meloxicam) to be given at 10pm, 24 hours apart from the injection, but i had to give at 5am. He started moaning at 3am. And now he couldnt stand. Both leg are in pain, weird positions, etc. I feel no edema. Whats wrong with you bb? I keep asking. No answer.
I kept seeing him struggling, sudden trying to sit up, moans.
He last pee was the day before around 11+pm. Usually morning 5+/6+ he would pee and shit. Sometimes not even morning he would pee too. But till now, no output.
Feeding him water bit by bit. So he wont dehydrate, but he refuses and definitely deprived of hydration.
We moved out from room to living room so i can cater to his ADLs more better. Trying to get him sleep as much as possible.
Pray. You need to be healthy, painfree, agonyfree, irritating, back to self, etc again. Im waiting.

Lkl