Hi,
I know it's been ages since I posted this thread but life has been very busy.
I would like to thank you guys for taking the time reply.
So here's an update on my baby
He's doing great and is now a cheeky little brat who's captured my heart

It's been a long struggle. Last week was our last appointment with the vet. He's now in superb condition

He has now normal weight, great muscle mass (which has been hard work gaining). He's lost a lot of his teeth, but we're dealing and his quality of life is good
He was dumped on my doorstep. I know the previous owner and she's been arrested for animal cruelty so that's a victory
So again, thank you all. I was in panic state at the time but somehow you calmed me down and it made me gain control so I could take action. Thank you!
Here's a pic

(not a great one :P)