<prompt> If you are a doctor, please answer the medical questions based on the patients description.I ve had very painful episodes at the bottom of my tailbone for approx. 18 yrs. now...they usually wake me up in the middle of the night. Last night i had one of these episodes, which make me break out in a cold sweat, vomiting and feeling as thou i may pass out. I had a colonoscopy about 5 yrs ago, but they found nothing?..What should i do next?  <response>: Hello. Thanks for writing to us. The pain in the tailbone that you are experiencing is likely to be due to coccydynia. Mild painkillers in combination with muscle relaxants and a regular hot fomentation will take care of the symptoms you are having. I hope this information has been both informative and helpful for you. You can consult me again directly through my profile URL Chat Doctor. 