Hi Tim - I have to disagree with Fatgirlslim that it isn't a great problem! I have Morton's on both feet, both cause me trouble on long runs, but the right is far worse. This condition can cause an erratic running action, because instead of rolling off the big toe, you are landing on the 2nd one and that can lead to over-pronation and hammer toes. In my case, because I've been an active runner all my life, my gait has altered so much that I roll off the joint of my 2nd toe instead of the ball, this can cause excruciating pain but I've solved it by taping a cotton wool ball under the troublesome joint whenever I run a half-marathon or longer. Used to wear orthotics too but they didn't help the pain. I also had to give up wearing high heels shoes at work all day because I still was standing and walking on that toe joint. Over the years my longer 2nd toes have actually scrunched up a little.
