Animal euthanasia (putting down) question?

definitely take her to the vet,she may just have a kidney infection or something minor,but if you really love her you NEEDto take her to the vet.If she is truly suffering they will put her to sleep.they will allow for her weight and do right by her.Being put to sleep is just that,they fall asleep and don't wake up,it's very peaceful for them and harder on us in many instances.Good luck and be brave!