So often people get put through too many tests to establish a physical cause of their pain , only to turn up nothing . Or , when we suggest that there may be a large anxiety or depression component , people often can be offended . In my father ' s case , they did countless tests over 23 years and the best they could come up was acid reflux , old age and anxiety . Needless to say , when he died of cancer not diagnosed until a few weeks before he died , we were A BIT upset with the doctors ' earlier diagnosis . <| sep |> No idea , though I think the mechanism behind it is different than regular benzos . I ' d consider buying a personal drug test and trying it yourself if you ' re willing to go down this route may come in handy .