SO sorry to hear about everything you are going through right now, Amy!
I really hope you feel better soon!
I've had health issues since I was a baby but they were only diagnosed when I was diagnosed with RSD at 12 years old. I have severe Hypermobility Syndrome. My joints bend a lot further than a 'normal' persons and the HMS has caused me to break bones and tear ligaments easily - PM Doctor thinks this may be why I developed RSD. I have RSD in my left leg, both arms and now possibly back. As a complication of that I have Dystonia (a movement disorder) and POTS. POTS is a blood pressure condition and can cause me to faint a lot!
Docs aren't sure whether I have RSD in my back as I have a condition called Scheurmann's Disease. It causes the discs in my back to herniate and my back is also curved. There's nothing they can do to treat it i've been told
Just wanted to say you aren't alone and that I and many others on here know how frustrating it is dealing with lots of health conditions. I really wish we didn't have to and that I could relieve each and every single one of your pains!
Take care and feel better soon!