Thanks for the suggestions. I've thought about PT myself but they're hard to find around here, i've searched, and i'm a bit worried about making things worse, because i know through self examination that there are very sensitive spots in my rectal muscles. I must admit, that i HAVE noticed ever so slight reduction in symptoms in the last week or so. (I'm touching wood as i type this).
The pain never completely went away before the block, but it varied depending on things like bowel movements or any sexual activity.. But, thanks to a very good psychosexual counselor, i could live a reasonably fulfilling life, knowing my restrictions. I think its probably going to be just a matter of letting it settle down, (however painfully slow it is). If it settles down to how it was pre nerve block, that will do for me. As i said, i can live with that. Maybe if it doesn't settle back down, then i'll mention the MRI to the pain doctor in April at my follow up appointment.