Feb 19, 2013, 2:52 PM
Registered: Aug 18, 2009
I fell out of a tree once, and my Achilles on one foot does the same thing (although not as much in recent years), but with no pain, or loss of usefulness/strength as far as I can tell. Never had it looked at, just continued on with life.
EDIT: I can also do that with the tendon over my middle knuckle on one hand. Freaks some people out, but again, no real issues.
(This post was edited by weilawei on Feb 19, 2013, 2:53 PM)