Natalie,
I'm so sorry you had such a rough PT. It's no wonder you're having a lot of pain today. And, of course, having to be at the hospital doesn't help. I hope things are okay with your husband. My husband used to have a lot of problems with kidney stones (he still has 7 that we know of, but they have not caused problems and are being monitored), but once he was diagnosed with and treated for an auto-immune disease, he has not had any more troubles. He also started drinking more water, which he had not done before.
Please keep us posted on things! I'm thinking of you.