Early Sunday morning (maybe 6 AM) Darby started barking in her crate, which she never does. I checked and she'd vomited in there. Just foamy, watery stuff. I got her out and cleaned up, etc. She ate fine that day, but by evening seemed distressed, and was particularly concentraing on her pee parts. She was fine in her crate that night though. Monday I took her to the vet and they looked at her urine and found evidence of a UTI, elevated white count as well as crystals in her urine. We got an antibiotic and started her on that. She's been fine. Acting normally, eating normally, peeing normally. She was fine in her crate on Monday night. Then this morning at around 5:30, she vomited in her crate again. Just the foamy watery stuff. Since then she's been completely normal. Does that seem odd? One time (especially the 1st time) I can understand, but now again three days later at the same time of the morning? She's perfectly fine right now and we just did 10 minutes of training. No eidence of distress at all. What would you make of that?