Although it's possible to have no signs or symptoms with an Achilles tendon rupture, most people have: 
The feeling of having been kicked in the calf
Pain, possibly severe, and swelling near the heel
An inability to bend the foot downward or "push off" the injured leg when walking
An inability to stand on the toes on the injured leg
A popping or snapping sound when the injury occurs
 When to see your doctor Seek medical advice immediately if you hear a pop in your heel, especially if you can't walk properly afterward.