I just fall from a small lader while im working, sat and i hit my back and head now it feels like some small pintch in may back that is not going away?

See a doctor: As a trauma surgeon, i can speak first-hand about the dangers of ladders--even a relatively "minor" fall can cause quite a bit of internal injuries. The persistence of your back pain warrants a formal evaluation to be certain that there is no significant back injury. I would make an appointment with your doctor asap or go to an er for evaluation.

Get examined: Backache after a fall requires to be examined by your doctor to rule out serious treatable conditions, if no treated could leave you with long lasting problem.