"took tramadol for excruciating back pain. worked marvelously for three weeks, pain 80% decreased, but affected my judgment as i saw events and people in an unrealistically positive way.  after 3 weeks, i started imagining blacks ghosts at night, got depressed and negative, my face felt like sunburned at night, nausea. needless to say, i stopped taking the drug, withdrawal made the experience worse, i am back with pain waiting for surgery. bad drug!"