I am a 52 year old male and for the past few years I have been having lower back pains. Nothing in particular brings them on. Could be a turn, bend over, and the latest is from sex with my wife. The episode started Sunday night and has lasted until today. I was in enough discomfort to stay home from work. My family doctor says it is lumbar strain. I am in pretty good health so I do not understand this. I work on Jets and there is a lot of bending, stooping and climbing. Sometimes I can go for several months without much pain. I am at the point that I feel there is more to this than just a Lumbar strain. Anyone have an advice