OMG so sorry to hear you are getting the run arround. I am 32 and have had issues since I was a child but the back really started up arround 20. I was diagnosed with severe SPD also. Just like you I was hospitalised and then induced early due to the pain. They did an epidural to help with the birth and they tried 4 different spots before they found a space in my spine to be able to get it through. So very similar onset.

I just want to slap your rheumy. Far out with your family history alone you should be getting tested. Then add your actualy clinical problems. Is this rheumy 200yrs old or something.

You seem to have a good GP so I would try and see if they can reffer you to a different rheumy. Not sure where you are from but we have members from all over the world so one of us would likely be able to give you a heads up on a good rheumy in your area.

All the very best.
Trish