Hi, NOted the history about having butt-bouncing that cause tailbone pain that remained for a week, you tried again and had pain although there is no pain while doing other activities. This surely means that you have developed inflammation at the tailbone that is coccyx. I would advise you the following in such a situation. Consult a General Surgeon for having per-rectal examination to see for the pain, tenderness, mobility and so on to know the clinical finding as to the cause of pain. X-ray to confirm. Take laxatives to have soft and smooth motion. Sitz bath to have soothing effect on the inflamed part. Take an anti-inflammatory medicines. No such activities that cause strain on the affected area. Take rest for at least 3 weeks as this is the time required for healing. Review after a few weeks with your treating Doctor. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. T. Chandrakant, General Surgeon