Could be the volume of training that you are completing for your triathlon has lead to a fatigue injury - in some cases, this can lead to a stress fracture (are you woken with any pain during the night?). Any swelling? Does the pain subside during activity..?
Could be the volume of training that you are completing for your triathlon has lead to a fatigue injury - in some cases, this can lead to a stress fracture (are you woken with any pain during the night?). Any swelling? Does the pain subside during activity..?