Gozer is doing much better now. We took her and a sample of her urine in this week and the urine had a pH of 6.0. She's pretty well stopped bleeding when peeing, too, so I think she's over the worst of the problem.
Clearly the food is working, and although she's showing some signs of itching she's responding well to it. The vet said that we could easily feed her another food while we were visiting Ian's parents so that we don't trigger his mom's allergies with the fish oil. So I guess that's what we'll do for now.
Speaking of itching, I've been incredibly itchy since last night. I woke in the middle of the night scratching and scratching and scratching and I've been scratching today, too. I took some Benadryl, which helped, but I'm still itchy.
I'm thinking I'm itchy either because of the flowers I bought for the dining room or the people we had here last night. Ian hosted a pinball league night here and we had about 20 people (some of them smokers) here. I bought the flowers to brighten the (newly clean) dining room. The night went well; everyone was respectful of the house and they weren't too loud or anything. Apparently there was a problem with one machine but the others all worked just fine so we're calling the evening a success.