Tailbone Pain - In Real Time

I have had on and off tailbone pain for about 9 months (despite rounds of professionally monitored physical therapy and osteopathic manipulations and individually monitored stretching and strengthening). This week, the pain was unbearable. It felt (and feels) like a vice is slowly crushing my tailbone (vertically). And almost nothing I do helps. I couldn't sleep, I couldn't sit comfortably, I couldn't focus at work. I am beginning to wonder if my tailbone isn't broken.