Pain
"I have arthritis in most joints and back and neck pain.  I have used Tramadol for 2 years now. It was life changing in the way it relieved pain without nasty side effects of  hydrocodone (I got very irritable when it wore off). Seems to be taking higher dosage for less relief but still would rather continue the tramadol and use something for breakthrough pain on physical work days. If you experience nausea try a lower dose and work up to more. Stick with it,  the nausea went away for me. When I forget a day or so and go back to it I sometimes get nausea again."