I developed this problem 2-years ago. It started out like the begining of stomach flu, an uncomfortable feeling low down in the center of the body, like a need to go the bathroom. Within a few months this worsened to become an ache in the center of the lower back, immediately above the buttocks. It is worse at night and when sitting for any length of time - driving for example or using a pc. Activity helps at the time, but often I suffer for it later.

1-year ago I had nerve block injections. They did not help - the ache was much worse for 2-months after before settling back at where it was before the precedure. Bone scan, blood total count, mri (2) and xrays have shown no problem. Pysiotherapy, osterpathy and a neurologist could find no cause.

I am beginning to think that my ache is not from the spine at all, but is referred from somewhere else - the muscles in the buttocks for example.

Three years ago I had prostrate surgery (psa zero since). I thought that the ache might be referred from there. The surgeon had a blood test and xray done that proved negative. There is no correllation between bathroom needs and ache/no ache.

Question: has anyone had this problem? If so, please explain your experience. What advice can anyone give that will rid my body of this debilatating condition?