Scoliosis Diagnosis and Progression

I was diagnosed at 15 and my curves were 35 and 45.. now 70s and 80s. I'm 30. Told they won't operate on me until life threatening now that I'm an adult, but seeking second opinion. I have EDS and trying to find out if I have tethered cord.

When they first noticed it was 20 now its almost 50, and it’s only been like a year, I’m 16 by the way