Anyone ever injured their palerneal tendon?

Its the tendon next to your Achilles. I work out 6 days a week and im very active, and 4 days i woke up and my right ankle area was very swollen and red.

it has been off and on but when it hurts i can barely put pressure on it. i tried stretching it and was able to work out friday and saturday including mostly upper body weights, but was able to jog at a 6.3 mph pace

i really hope its only tendonitis. do you think it would be ruptured or torn if i could still walk and even jog? Im so busy right now with work and vacation i dont have time for this!

Thanks