Hi there! I don't know how helpful my info may be, but I have a 30 degree curve in my spine (scoliosis) that often causes problems with the muscles underneath my right shoulder blade due to inflammation. My shoulder blade used to kinda "pop" occasionally when I would rotate my arm at an odd angle, but that was long before I started poling. I have been through physical therapy and the exercises that I learned I have been able to incorporate into my pole routine with great results!
My physical differences from straight-spine polers has its share of disadvantages, but also benefits. For example, I have a lot of difficulty with the advanced plank if I use my right hand to grip beneath me because my shoulder always wants to roll forward instead of back and down. It doesn't cause any pain, but I can't get the move to look good if I use my dominant hand and (to add to the frustration) my bra strap always slips down. LOL
With learning new moves I take it rather slow until I understand what position my body may either ease into or fight against altogether. I try very hard to make sure that when I execute a move that I am doing it in a way that works with my unique spine. Inverts where I am facing away from the pole (Gemini, Scorpio) are very comfortable for me and came with much less struggle than ones where I am facing the pole (Inverted Crucifix, Butterfly). Pretty much any move where I can lean back and hold with my legs is more comfortable than when the grip relies mostly on my arms and hands. However, strangely enough, handstands are easier for me (both dropping down into or going up from the floor) facing the pole rather than when I have my back to it. There is also the recent bizarre realization that I can do a teddy bear with minimal effort, which is a move that I had been dreading to attempt because it seemed like it would be impossible.
Just a guess, but your strengths and difficulties may be the exact opposite of mine since (I'm assuming) your spine curves at your lower back. You may have an advantage at upper body and core strength, with the possibility of some very interesting and sexy flexibility. What you mentioned about your hip on your left side sounds a lot like this thing I can do with my right shoulder, haha! =D
Anyways, I hope at least some of this was helpful. My only real advice is to look into physical therapy (they will show you the way!), keep up to date on the status of your condition (i.e. has your spine fused into position or is it still curving?), and ABOVE ALL ELSE don't let your back rob you of your glory. You may have to adopt a different approach than most people, it may take you longer to nail a new move or to learn how to properly execute one that you got right away, but believe me when I say that you can do it! If you are very aware of your body and what you are doing with it while up on the pole it will serve as a great advantage to guide you into new moves and guard you against injuries. If you are strong, flexible, and a good dancer besides...well, heck, you got it made!
? ~*Serzi