I am going through the same thing you described. Both big toes are discolored and one is bleeding badly. Been diagnosed as nail fungus by 2 doctors. I was caused by 4 treatments of Taxol. I will also lose atleast one big toe nail. Doctor cut about half of it off and cauterized it to stop the bleeding. Only recommendation is to take B1 and 6 which I'm about to start. How are you doing? Any suggestions from your doctor?