I have a recurring Achilles ache in my left leg, I ruptured the one in my right leg about 20 years ago.
The latest tweak came off running a 20k (which is long for me) then a few days later doing a strength session which included dead lifts and lunges, then on a 10k aerobic run (two days later) I had to stop and walk the last half kilometre due to the pain.
It's likely the sessions before have contributed to this latest episode but in reality I always have a mild (1 out of 10) ache in my right Achilles.
Question is: Has anyone else suffered from this and over come it? If so, how?