My kidney keeps hurting really bad, it'll hurt horribly for a little and then calm down but I don't…

My kidney keeps hurting really bad, it'll hurt horribly for a little and then calm down but I don't know what to do. I have a history of kidney stone and the last time I was at the hospital they said I had some. I wonder if they've just gotten worse. I can't go to the hospital cause I have no way home, plus I don't think it hurts badly enough to go. But it's still hurts enough to be keeping me up. :/