Have done a search but can't find an answer to my question. I have been running for about 6 weeks now and have seen a massive improvement in my times already, but for several days after a run the insides of my calves feel quite sore. I am hoping it is just the muscles building up and strengthening, however the area between the ankle and the beginning of the calf muscle is tender all the time now. I run 3 times a week and vary the surfaces between road, beach and grass. I purchased decent trainers from a running shop after they analysed my gait and recommended Reebok Premier Running shoes for over-pronation.