anxiety
"Several yrs ago I was diagnosed with severe anxiety disorder.  Had back surgery a couple yrs back and was prescribed Tramadol for pain. Turns out Tramadol (50-100 mg/day) works great for anxiety for me. If you take it for anxiety, make sure if asked that you say it is prescribed for pain as well. Several pharmacists tell me if you say it's for anxiety only, they "have" to report you and your MD and you both may be arrested. Not sure if the pharms are right, but if they are, it appears this is another case where a few abusers screw it up for the rest of us. It was not on the controlled substance list until very recently. In any event in my experience Tramadol is very effective to treat anxiety disorder."