Hi. I fell down hardwood stairs over 3 years ago and have feelings similar to yours. Finally this last summer an orthopedic doctor did an emg of the leg and buttock area. The results showed that a nerve in the gluteal area was damaged in the fall, something that is happens in crush injuries. I cannot sit or lay down without it hurting and it hurts to touch the area - just like you described.

I am curious about the tarlov cyst idea because in an MRI off my lower back, the radiologist mentioned the possibility of tarlov cysts. Please let me know if you find out anything from your doctor. I have found that it takes forever for any doctor to pay attention.

Thanks.