Oh I felt it alright!!!....I had to stop walking several times....felt severe pulling, cramping, pain, etc...from the top of the left hip to just above the outer left thigh starting about 10 minutes into the walk. Sounds silly but I found a way to favor another direction and after about a week, it finally resolved. I did a lot of stretching and just kept walking. Out of shape and had to build up to it! Don 't give up!!!