Need advice

I don't exactly know how or when it happened but I have bad lower back pain. I had made an appointment with my family doctor and he wanted me to have an M.RI done but my insurance would not pay for it. They would only pay for x-rays. I did not have the x-rays done because my back felt fine at the time. Silly me. I did fall twice on my tail bone as a child, I'm wondering if that and being a server for 9 years has anything to do with my pain. I am very careful with my back (I lift things with my legs, etc.). The mornings are the worst. I can't bend over, sitting down hurts and a myriad of other things. I started to do yoga about two weeks ago and it was getting better. The stretching and strengthening of my back and stomach muscles I know is important. I started planting my garden and maybe the digging aggravated it. I just took some pain relievers and rubbed icy hot on my back. I am so mad at my body. I feel like an old person. Anyway I'm wondering if anyone goes to a chiropractor and could offer any advice on choosing one and what to expect. Any advice would be greatly appreciated.