Hi, I Am A Female, 42 Years Old, 5ft 3

Hi, I am a female, 42 years old, 5ft 3 inches, 150 pounds. Had lower back pain about 12 years back from sitting on hard surface for really long. Had to be taken to emergency. Since then I have had some back pain on and off. Recently, while coming back from an international flight, my back pain started really bad. When I have reached home, i can see myself in the mirror visibly leaning to one side. Visited a chiropractor and he weighed me with 65 pounds on one side and 85 pounds on the other side. What kind of doctor should i consult?