Hello:
I am noticing a toe discoloration (next to my big toe). I am a marathon runner, so I am used to getting black toe nails every once in a while. I also had athlete's foot for a long time which I treat on and off. But, this is pretty recent ( a few weeks). Is not sensitive to the touch at all, don't even notice it really unless I look at it. Here is a picture (sorry I have gross feet :( )
I have a doctor's appointment in a couple of weeks... just wondering how much should I be worried????
Thank you