Thank you both very much! Sorry I'm being lazy and I'll just copy my reply from my other post to report about Siu Bo
My mom did say Siu Bo's a bit hyper and moved around this morning, after mom and dad fed him (the third pack of Royal Canin diabetic pouch since last night), he's calmed down and then he slept.
Just now during lunch i went home and brought him to the vet. After seeing him, the vet said he should be okay, and he actually gained 200 grams of weight (back to 6.1kg) overnight! He's been eating his syringe food properly, not struggling when feeding him, no vomitting. The vet said for the time being we should keep feeding him and will do blood test again in a few days. So I presume Siu Bo's stabilized for the time being.
But the vet did mention Siu Bo's a bit weird, cuz usually being diabetic will make the blood "acidic", but from Siu Bo's blood work he's actually towards slightly "alkaline". They are trying to figure out what that implies.
I'm a bit relieved now, and will keep going with the feeding. Hopefully he will be wanting to eat on his own in a few days time, and his appointment with his regular vet will be on 23rd September this saturday.
Thank you all again! I just rushed back to office and now i'll sneak to pantry to eat my lunch.