(I'm 26, so it's unlikely to be osteoarthritis, although not impossible.)
It is suspected (by my GP and my osteopath) that I have inflammation in my sacroiliac joints and facet joints. Rheumatologist is not convinced and said that RA in the lumbar spine is rare but has conceded that my high pain levels plus very restricted lower spine movement is puzzling, therefore needs further investigation. I'm waiting to get a date for an MRI scan.
Is anyone else in similar position? How do you manage the pain? It's just unbearable, especially when trying to get comfy in bed. <sigh>