Suggest Remedy For Severe Pain In Lower Back With Extreme Hot Flashes

I hurt my leg October, 2013, moving 50# cases of food from above my head from one side of a walkin freezer to another. Pain started in groin area and I was eventually unable to get out of bed without assistant, also was unable to dress myself. After chiropractic help, I was able to function again, but has since suffered severe lower back pain as well as occasional pain in my groin. Also I have been have episodes, mostly at night, where my body(on my left side, which is the injury side) feels like it is on fire and I eventually break out in a sweat. Doctors have been unable to determine exactly what is wrong.