I ended up going to the vet today for a quick visit. I was real uncomfortable and pacing back and forth to the litter box but couldn't produce anything. Mom was afraid I was constipated. It turns out I have a UTI. In addition to an antibiotic, the vet recommended adding some Vitamin C to my wet food to balance my pH. He was guessing it was closer to 9 when it should be around 6. The challenge right now, of course, is actually finding Vitamin C. Mom and Dad struck out at the two stores they were at but then stores started to close. Fortunately a neighbor got some from another neighbor to give to us (a series of handoffs on front porches that would have raised eyebrows any other time). It's great to see how we all come together in hard times. And I got extra wet food too!