How to stop foreclosure and keep your home

I wanted to know how to stop foreclosure and keep your home. I have missed 6 mortgage payments so far and my bank is sending overdue letters and called me every month. I have told them that I don't have money but they are insisting that I pay. I was recently diagnosed with a medical condition which prevents me from working but the bank cant understand this and I don't have insurance. I'm sure foreclosure proceedings will start soon and I'll be given a foreclosure notice so I wanted to prepare myself by knowing how to stop foreclosure and keep your home. Please share any ideas, insights or experiences. I really love my home and don't want to leave.