I've been doing an hour or cardio every morning for the past 2 weeks. A lot has happened in those two weeks, here's the timeline:
1) Massive calf and shin pain (especially on my right side) just from walking. Jogging made it almost unbearable.
2) The calf/shin pain disappeared after I got some Aesic Gels (for $25 =), but I started to get slight pain my right achilles tendon.
3) Pain quickly disappeared from my right achilles tendon and appeared in my left achilles tendon. It is much worse on my left side and hasn't gone away (the achilles tendon pain on the right side went away after a few days).
What is this? When will it go away? Its starting to hurt really badly, especially when I point my toes. My cardio isn't even that intense. I do a brisk walk to a track (1/2 mile), then do 2+ miles, running the straights, walking the curves, then walk back home (another 1/2 mile).
Thanks for the input.