I lost my beautiful cats (Patreon)

So I took Jupiter to get neutered on the 18th and he came home fine, he was perfectly okay, then four days after the procedure I take him to get checked and he comes home and starts behaving off, he ate so little that day, the next day he won’t stop throwing up so I took him to the vet. He didn’t improve even after several visits. Jupiter died while I was on my way home with him from the vets. Three days later Winter showed the same symptoms, I did everything I could to help her too but unfortunately she died two days after the first symptom. I really can’t believe I lost all my cats in less than a week. But if heaven exists I hope they are there waiting for me, if not I hope they find me again.