I told my chiropodist that, for the first time ever, a doctor at the clinic had difficulty finding a pulse on my left foot. She was holding that foot at the time and said it was warm so nothing to worry about. She explained that something (a tendon? muscle? ligament? . . . she mentioned the name but I can't remember what it was) can cover the blood vessel and hide the pulse. . . . I presume your feet are warm.