I am struggling to put any weight on the ball of one of my feet. There is a small circular white/ grey patch and a lump under the skin. Have had verrucas in the past and it isn't like one of those -there are no black dots on it and doesn't break the skin pattern. It is between my first and second toes about 1 inch down from the base of them. Has anyone had anything similar? I am getting fed up with limping and don't know whether to try to see a GP or not.