I have been having trouble with the coccyx which I didn't even know existed! I'm 16 and I went to the doctors who said it was coccydynia, and he said I must have done something to the coccyx, but I can't think of anything, and if I have it didn't hurt at the time.
I recently had exams which was terrible sitting down for hours in pain and concentrating, but the thing that is more painful is when going to stand up. I have tablets now to take so cross fingers those will work, but I read other people's stories and I'm getting the picture it won't be any time soon!
I really do feel for you all with this condition it really is not nice.