hi, thank-you for providing the brief history of you. As by reading your history I could understand you had a ankle sprain. Now as years passed on by you still have pain and it s more. for which a thorough neuromuscular assessment is advised. Also, to understand here, that Spain occurs in the ligaments. And there will be a minor inflammation or a tear of the fibers of the ligaments. Also As we Age the ageing process leads to weakness of the body and tisses. So, the pain you are having is of the old ligament sprain. for which I will advice you to undergo physical therapy - Therapeutic ultrasound therapy and TENS therapy for the same. Also, exercises will be taught to strengthen the muscle groups. Also, you have doubt of the hairline fracture, sell hairline fracture is not an old injury to give pain. If your doubt is still persisting than an MRI can be performed which will expose the soft tissues as well as the bones. Also, hairline fracture, heals faster and stronger, there is no problem you facing due to hairline fracture and also you are not misdiagnosed in the past. In my clinical practice I meet people staying old ankle sprain history with recurrent pain. And by physical therapy they get benefitted. Regards Jay Indravadan Patel