I'm so sorry to hear that Donovan is sick. He sure is gorgeous. My cat Cirrus had a severe case of crystals and he's only 1 year and 9 months old. I was also feeding him a premium cat food which was Nutro Natural Complete Care. He had to have surgery and is now on Hills Prescription c/d Diet. I agree that some cats are just more likely to have urinary tract problems.

Prayers and positive thoughts are being sent your way. Please update us when you can.