Hi Doc, My area in between my interior left ankle and heel is tender and painful for no known reason and a little swollen. I just woke this A.M. and it was tender and slightly swollen. I'm 57 years old, male, had A-fib about 4 years ago, but all is well after the heart was re-booted. I did not strain it to my knowledge or do anything strenuous. jus a little worried it might be something heart related?