Does an attorney have to give client written bills as a case progresses when they take it on contingency?

I just lost my medical malpractice case yesterday and my attorney reminded me that i was in charge of expenditures that totaled 60,000. I had no idea that the case was costing so much.I would not have taken it to court if I knew I was on the hook for that amount. Attorney never mentioned the cost of things and I can't afford to pay even a fraction of that.