I was in the same boat as you.
Tramadol IS a narcotic,
and you can get addicted to it. I had to change doctors
and my new doctor told me that tramadol is a narcotic, is very addictive, and does not help pain much and has too many side effects, including seizures. In May of 2008, Sweden moved it onto their controlled substances list as a narcotic. It stimulates the same MU receptors as narcotics do. I would dump it and try something else. Half a tablet won't do much for you...