Usually ankle fractures
are complicated, for surgery as well as prognosis. There are three bones which has to unite perfectly and even post surgical complications are more in ankle joint fractures. You had fractures ten years back. Was there any signs of discharge of puss or any watery secretion from the fracture site. Even after surgery the joint will be weak and being the weight barring part of the whole body easily prone to further breakage. Consult your orthopedician. He may suggest an xray to see whether the bones are fine. Tablets won't help you in the long run.