I had SPD adn was on crutches and then in a wheelchair for the last 2 months. Had fantastic physio support and they took me down a very agressive management plan - if it hurt I either wasn't to do it or minimise it, with the objective of minimising any long term damage.
I had an imemdiate improvement post birth, and a second big improvement when I stopped breastfeeding at 6 months. Now at 9 months it's still improving and I feel I may eventually be fully better.
Re birth, it was fantastic! I was just so desperate to get the baby out. I had DD without intervention at 40+3.
She was back to back, which meant I was on morphine at 2 cm dilated. Fortunatly it sent me to slepp for a few hours. I then had gas and air, more morphine, she turned by herself and I had a really wonderful birth with no intervention on all fours.
I was absolutly hell bent on not having an epidural, as very small changes in position made a massive differece to the SPD pain, and i was very wary of sustaining any extra damage. also i was very keen to avoid a c-section as whilst the physios hadn't put any pressure on me they had said that the more abdominal damage i got the harder it would be to recover from the SPD
i did a hypnobirthing course and found the cd's very helpful with dealing with the pain at night
hope this helps
katy