Possible stress fracture
No trauma or injury recently.Duration of 4 weeks.Pain and burning sensation is on left foot outside along edge, starting below and forward of ankle ,from side of foot to little toe.Pain sometimes radiates to front of lower left part of the calf and little toe. Painful Burning sensation more prevalent at rest in bed if ankle makes contact with bed. Constant ache. Painful to move ankle side to side after long periods of standing. No pain with movement up and down. Running/fast walking painful.Walking painful if on feet more than 8 hrs. No swelling or bruising currently or at onset. Severe sprain to ankle over 30 yrs ago. On feet 6 days a week, concrete floors.