Helllo my anxiety is sky high and I don't know how to manage it. I've had a discloured toe nail for years now, my second toe from the big toe, My gp did sent nail clippings to the lab to test for fungus infection. At the time they came back clear. She told me your nail is is just discoolured. This was 4 years ago but now I' m afraid of melanoma! Surely after all this time I would have other symptoms by now.