Urgent Help for Life-Saving Surgery

I apologize for my recent FB silence. I've been going through things in my head like a madman, and sadly, I can no longer continue with life the way I've been living it. The past few years of infection and sickness have caught up to me, and a mix of bone disease and diabetes has led me to this point. I have to get my left leg amputated and I am AFRAID. I cannot cover this as I haven't been able to work, and my insurance will not cover it either. I'm in a dire spot. But staying sick is literally killing me, please please please share or donate if possible.