I run marathons and have been run for years. Recently I got new shoes. I ran in them about 4 weeks and one time I thought I tied my shoe too tight, but I ran anyways. I then had a pain that developed on the top of my left foot right under the second to last lace hole on the right side of my foot ( about 1-1/2 to 2 inches below the bottom of my big toe). I've laced my shoes different for 3 weeks but the pain has not gotten better and last weekend it was worse. It doesn't hurt to push on it or to hop on my leg, only when running and after a run, walking.
Any advice on how to help this would be appreciated. Thank you.