I can't take him to the vet because of the high cost.

I'm so sorry to hear this! This is true indeed for other places or countries. A couple of visit to the vet is also costly and I had to find a way to be able to pay for it so I'm thankful to those who lent me some money for this.

It is indeed a big responsibility to take care of a pet but it definitely is a part of the process when one decides to own or adopt these animals.

Thank you for your kind words @henrycalu! I appreciate it.