Mouse's Cat Needs Urgent Medical Help

Hi, my name is Mouse and I am trying to raise funds to get my cat back to the vet for a follow-up as he seems to be doing worse. He is suffering from a severe bladder and urinary tract infection. I am currently disabled and find myself short on funds. I have already put out close to $600, and it's getting to where I may not be able to eat this month. Any help would be appreciated. He is all I have in my life as I have no family and very few friends, or what I can call friends, so I am reaching out to others to see if they may be able to help.