Hi Clare,
I saw the specialist and he said there was a fracture and on the report, the radiologist just wasn't committing himself (but looking at the MRI scans, you can see my coccyx is at right angles as opposed to being a natural curve) so he said do not run AT ALL for 6 weeks. If I do, then I could have problems running forever as it could be missaligned. He said use the pain as an indication and if it is painful do not run through the pain.
He said I could swim front crawl and backstroke but being careful I dont kick too hard.
To be honest, I have been really down and depressed about this but have accepted now that 2 months or so off running is better than long term problems.
Not trying to worry you but the specialist really put the frightened on me about training too early.
Good luck. How is it today?