Yes, I finished chemo in June and I'm still having problems with one toe nail. My fingernails also went slightly yellow with ridges, but not too bad. My toenail, however, went a funny yellowish whitish colour and has partially lifted from the nail bed. None of this happened to me until a couple of weeks after chemo finished. The problem I'm having is bacteria is getting underneath the lifted part and causing infections in the toe. Soooo painful I took a sterile needle to it to squeeze out the fluid and relieve the pressure. I've had one course of antibiotics, which I think took care of the infection, but it's still not right. It's very sensetive to pressure too. My kids are constantly stomping on my feet as they clambour around me and it sends my toenail black. They're not heavy, either.