I have the same problem too!! Its my shoes!! If you are tying your shoes too tight this will happen. Or, if you have high arches (like me) and the space across the tongue of the shoe is too wide, the laces will cut across that lovely high arch and make your toes numb. I have to buy shoes that dont have wide spaces in the tongue area. When I tie up my shoes, I have to have those lace eyelets come in pretty close.
Hope that helped