Ditto to what Varda wrote. I have to fight my heel-striking tendencies all the time and consciously think about using a mid-foot strike. It will feel really weird at first, but it will be more comfortable and efficient in the long run. As you put on more miles, consider getting checked at a running store for over pronation or supination. Neither sounds to me like it would be associated with the pain you describe, but those will commonly catch you a little later in the program and can be mitigated a great deal by your footwear choices. No need to rush to that now, but think about it before you do buy that next pair of shoes. (Welcome to running! The great world where we can always manage to justify another pair of shoes!) :drinker: