Uk loan needed £100 till Tuesday 16th

I feel awful asking this but need help with vet costs I took on a kitten as its previous owner was threatening to throw it out (reported to rspca) , we’ve been to the vets twice this week and it’s zapped me, he’s got diarrhoea which isn’t improving only seems to be getting worse but is still bright and eating. I’ve been advised to get him seen again and I don’t have anywhere else to ask. Happy to pay interest