I've been sick with a several serious conditions since 2003. On medicare and racked up lots of medical co-pay bills. Does anyone know of government or charitable help in paying these bills. I've seen it written that grants are available but have not seen any specifics.

I don't know what state you are in, and if there is such a program where you live, but in MD they have Catastrophic Medicaid. There is a deductable, and you must have limited resources to qualify. Contact your state Medicaid office and inquire. If any govt grants exist, your elected officials would be the ones to contact.