broken ankle rehap

July 12, 2013, I broke my ankle when a swing I was sitting on with 3 other people fell on my right foot. After x-rays, CT scans, nucular bone scan and an MRI I had a nonunion fracture of the navicular and the heel bone just below the navicular. Two years ago on my 50th birthday I ran my first marathon. I just started walking and a little jogging on a regular basis and find that it takes about 3/4 of a mile before a pain at the base of my big toe stops hurting. Is this normal for my age or lack of use since the injury and will it stop hurting as I continue to walk and jog more frequently.