I have pain in my elbow and its hard to move my hand after tb test. what is that mean?

Hard to say...: If you got the test and your arm swelled up shortly afterwards, its possible that either you had an allergic reaction to the test, had a test site infection, or had an unrelated injury while sleeping or (if you had a blackout) were otherwise not aware of your surroundings. Go back to the doctor who gave you the test and have them look.