coccyx pain can be very serious. I would stop spinning until you are pain free. I haven't seen alot of these problems from cycling other than after crashes. Do you remember injuring your tailbone in the past? If after you are completely pain free, you have a desire to try again, find someone who can set you up properly and help you with proper technique. You would have to be sitting in a really odd position to be putting pressure on your tailbone. You could have caused some damage if you were trying to climb with way too much resistance. Again, it is more likely that this came from another injury. Some women have complained of this after child birth. Damage can occur to the surrounding tissue. If pain continues, please see a doctor. I have a client who cannot sit for very long at all. He was experiencing pain and wanted to continue to work out because he was losing weight. He has now gained quite a bit of weight because he cannot do much activity at all. I don't want to be an alarmist, but I wouldn't take this lightly.



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