A common cause of hip pain are tight knots or trigger points in the gluteus medius muscle. If the gluteus medius trigger points are activated then pain may be felt all the way down the leg. Usually you can work trigger points 3-5 times per week and you should start to feet better with less tenderness after about a week of consistent work. The soreness shouldn't be overly painful to cause any holding of breath, make sure you can "breath through it". You should try to follow up trigger point work with stretching and then strengthening after the pain starts to decrease. Please leave any questions or comments down below, Thanks!