Cover dialysis bills

As many of you know I have been battling kidney failure since May 13, 2016 and as of February 2017 my insurance is not fully covering my costs...I have both Medicare and Medical and still have to come up with $686 a month for dialysis...I honestly can't afford that...the stress of the mounting medical bills is starting to affect my health...have been experiencing severe anxiety attacks on a daily basis...I'm a single mom who would do anything for her son including asking for help to stay alive...anything helps...if you can't help financially prayer is always appreciated...thank you and God bless